Allen Avadonia

"How should I say this? This may be a bit too arrogant coming from a mere servant, but I want to protect the princess."

- Allen

Allen Avadonia, born Alexiel Lucifen d'Autriche, is a prince of the Lucifenian Royal Family. To protect his sister, Princess Riliane, Allen returned to the palace as his twin's chamberlain. He is dubbed The Servant of Evil by Gast Venom.

Early Life
"Well, at the time, you just arrived at our home. You treated everyone like enemies; you didn’t even look at me. At the time, I didn't know why you were like that. But now I know why. When you were suffering and had gotten into a political dispute..."

- Germaine Avadonia

Alexiel was born in EC 485 along with his twin sister, Riliane, as the heirs to the Lucifenian Royal Family. In EC 491, when they were children, Alexiel conceived the idea of escaping through a hidden passage past the fireplace in their room. He told Riliane about his plan, saying that it was their secret. The twins escaped, passing through the Forest of Bewilderment before arriving at the shore of a beach. Over time, they escaped more and more often to play at the beach. During one of their visits, Alexiel treated his crying sister's wound after she fell and cut herself. Later, the young prince heard Riliane call to him after she dug up a small, black box in the sand. Excited by what they uncovered, they opened it but were disappointed to only find a small mirror inside.

A demon then manifested around them and the scared Riliane held tight to Alexiel. As the demon gawked at them, Riliane began to walk away from the creature while the prince held out his hand in friendship to the demon. The demon hesitated to grab his hand and flew past him to go after Riliane. Worried, Alexiel ran to his sister and reached out to her before being rendered unconscious. Waking up next to his twin during twilight, he got up to look around when he heard Riliane say she was hungry. Smiling, he picked her up and, burying the box they found, the twins returned home. During their three o'clock snack time another day, the demon appeared to both twins and asked to have their meals. When Riliane refused to share her snack, the demon explained how even if she ate the whole world, she would still be hungry. Pitying the creature, Alexiel shared his snack with her. The demon thanked his kind gesture by telling him how if you wrote down your wish, put it in a bottle, and placed it on the ocean, it would come true.

While playing at the beach again, Alexiel wanted to go home because it was getting dark, but Riliane told him to not be afraid and just hold her hand. When he did so, he felt at ease and told her about the secret of the ocean he learned. Riliane then told him she wished she could be a horse in the next life and explained to her perplexed brother how she wanted to be able to run freely with him anywhere since the palace was boring. Sometime after, Riliane began treating Alexiel coldly as the struggle over who would succeed their deceased father continued. Sometime after Leonhart Avadonia, the captain of the royal guard, was assigned to protect him, an assassination attempt was made on his life but Leonhart foiled it. Afterwards, Alexiel confronted his mother and asked to be adopted by the swordsman to end the unnecessary conflict and avoid becoming like his selfish sister. Anne agreed to her son's wishes and pronounced "Alexiel" dead to the public.

Adopting the name Allen, the former prince lived with Leonhart and was introduced to his new sister, Germaine. Allen remained shy at the Avadonia household and refused to look at or speak with his foster sister. When Chartette Langley had been kidnapped by a group of bandits, Allen joined Germaine in entering the Forest of Bewilderment to save her. Along the way, he began speaking with his new sister for the first time. Facing the thieves, the former prince saved Germaine after she too was caught by the bandits. Together, they managed to defeat the thieves and freed Chartette, panting with exhaustion when they returned to Lucifenian. Afterward, Leonhart scolded the two and struck Allen, although they all laughed it off in the end. Germaine was praised by everyone for the rescue while the prince avoided the attention, letting his foster sibling take all the credit.

Growing close to his foster father and sister, the three spent a great deal of time together and Allen often accompanied his sister to the smithery owned by Chartette's father when Leonhart's weapons or armor needed repairs. As time progressed, Leonhart began taking Allen to the royal palace to practice fencing, training him in the art of swordplay. At the age of thirteen, Allen attended Queen Anne's funeral, disguised in a cloak, and watched from afar as his sister sobbed over their mother's casket. Soon after, Leonhart announced he was sending Allen back to the palace to work as a servant for Riliane after the death of Queen Anne, since the Princess refused to let any of the royal guards near her. Since she lost her memories of Alexiel, Allen kept his identity incognito and left with his foster father the next day.

Reign of Evil
"Even though you are different, being boy and girl, your face is the same. Then, why is your station in life so different? You were thinking something along those lines, weren’t you?" "Ma’am, are you a mind reader?"

- Mariam Futapie and Allen

At the palace, Allen spotted his twin as she approached to ask who he was. The Princess then excitedly noted their resemblance, surprising the boy. Before Riliane could pull him away to begin serving her, Leonhart insisted the head maid, Mariam Futapie, dress him up first and she complied. Once she left, the Commander told him she was his sister and Allen expressed his happiness to see her smiling. Later, the two waited for Ney to get Mariam and, once the Head of Maids inspected the boy, he was dressed in his uniform and sent to serve the Princess. Soon after, Riliane decided to play a game and had Allen run from her while she attempted to chase him down and put one of her hair accessories on him. Losing once, the servant was forced to wear her bow and then Riliane had them play again. While running through the halls, Riliane demanded he stop or she'd behead him. After tackling him, the triumphant Princess began putting on another bow while she spoke with the surprised Mariam, showing her and Elluka Clockworker her two wins. After Riliane asserted she'd behead anyone as she pleased, she took Allen away.

On Riliane's fourteenth birthday nearly a year later, Allen was called upon by Mariam to help Chartette clean the courtyard, told to assure it clean for the foreign royals attending the celebration. Believing he wouldn't finish in time to serve Riliane her snack, Allen passed on the job to Ney then started helping Chartette with cleaning the palace's Heavenly Yard along with six other servants. At the sound of the Levin cathedral bells, signaling three o'clock, Allen noted it was time for Riliane's snack. The servant continued to clean when Chartette screamed and he flinched, listening to the maid whine and ask if they could finally stop. He reminded her they hadn't cleaned the fountain area yet and Chartette insisted no one would notice at night. Once he noted how, being Riliane's birthday, even Mariam was being more careful to keep RIliane from doing something awful to any slackers, Chartette gave in and said she'd clean by the fountain; Allen wished her luck and continued working.

Soon after, the maid panicked at Allen that something bad happened and the servant questioned if she had broken another fountain. At Chartette's chide she only ever slightly "cracked" one, Allen gave her silent stare before being reminded to serve Riliane's three o'clock snack. Allen explained his switch with Ney when Leonhart greeted the two. The soldier ruffled up his hair while noting his trouble being a servant and the boy brushed off his parent's hand, stating the Captain of the Royal Guard's work was harder. Leonhart told Allen he could call him "Daddy" and the servant bluntly replied that he was used to referring to him formally. When asked how he was doing after a year of being a menial, Allen brushed it off, curious about Germaine. When he learned she got in a fight, he asked if she won and Leonhart admitted she pommeled them. Hearing Leonhart admit to Chartette he was resisting alcohol the servant was surprised and listened as they lamented over the famine plaguing the citizens.

Allen questioned if it was because of the Princess' recently poor mood, Leonhart shrugged and explained how she refused his pleas to share the palace's food stores with the people. The boy then noted that it was because of her love for snacks and the warrior brushed it off as her inability to reocgnize the value of her luxuries. Changing the subject, Leonhart asked if Riliane was out at the moment and Allen doubted she'd do such a thing on her birthday. The warrior remarked how Josephine wasn't in her stable and the servant questioned if she was stolen; when Leonhart denied that could happen with their security, Allen considered the possibility they were focusing too much on tresspassers and not fugitives when they heard Ney shout for Riliane from within the palace. The three rushed inside, and Allen, after composing himself, asked the golden-haired maid what was wrong and she revealed the Princess was missing.

Following the maid to Riliane's room, she showed them the opened secret passage behind the fire place and explained what happened. He then stared at the passage, remembering how he showed her the passage, while everyone frantically searched for the Princess. After Leonhart tracked Riliane to the Forest of Bewilderment, Allen joined the search party in finding her. Told not to stray too far, the servant reminded Leonhart of his previous visit to the forest. Soon after during their search, he asked if his foster father was certain she went through the woods; Leonhart responded that Josephine's tracks ended there. Ney then ran up and asked if Allen had found her and he replied that she was still missing, comforting the dejected maid. When Leonhart mentioned the secret passage, Allen again recalled the time he snuck out with Riliane and remembered the coast they used to visit. He told the Captain of the Royal Guard he was going on ahead, nodding when Leonhart asked if he an idea where Riliane was.

Once he arrived at the coastline, found Josephine and Riliane sitting beside the horse, sighing with relief as he called out to her. After Riliane noticed him, Allen explained how Leonhart was worried about her. Riliane had a tantrum because her plan to get Leonhart executed failed and Allen apologized. As they were about to leave, the servant noticed she had a scratch on her hand and attempted to apply ointment to it. Surprised, Riliane slapped him; Allen ignored it and continued to heal her wound. Allen became lost in his thoughts of the past and was astonished when he saw he was still holding the princess' hand. He quickly let go and apologized again, prompting Riliane to laugh at how she finally made him fluster and he made another weak apology. As they prepared to leave, he suggested they head for the port town since it was faster, and reminded the embarassed Riliane to not forget Josephine as she ran ahead. Instructing her to summon the royal guard at the nearby port town to take her back, Allen said he'd follow behind on foot, lying about his ability to ride a horse. Encouraging them to head there together, the two began to embark when Riliane remarked how the sun was always alone, like her, grabbing the servants attention.

After they arrived at the town, they signaled for the royal guard and Allen watched as Leonhart and Riliane entered a heated argument; at the Princess' command, Allen kneeled along with the rest of the search party to show her their loyalty. That night, Allen continued to help during the party held in the Hall of Mirrors, although exhausted. Closing the door with Chartette, the two tired servants remarked about the fine food and wine the nobles were having while leaning against the door. After Chartette left for the kitchen, the servant drifted in his own thoughts when the passing Mariam asked if he was feeling tired, suggesting he head to his quarters and rest for a while before it was time to clean up. When Mariam parroted his thoughts about how the twins shared the same face but had such different lives, the shocked Allen questioned if she was a psychic. The servant then asked if his resemblance to Riliane would become a problem and Mariam revealed how he court mage, Elluka, convinced everyone that it was a mere coincidence and that Riliane was unlikely to remember who he was.

He returned to work shortly after, relieved to see Riliane in such a good mood. As he brought the food into the mirrored hall, the boy spotted his foster father guarding the entrance. As Prime Minister Minis began his speaking to the crowd, Ney ran by and told Allen they still had work to do, grabbing his hand and taking him to Riliane's gigantic birthday cake. Together with numerous other servants, they began moving the birthday snack into the hall for the guests to see. Overhearing his father's anger at the sight, Allen went after the furious Leonhart while he headed down the stairs, reminding him about his guard duty. The warrior said he was going around outside, saying Riliane was definitely "The Daughter of Evil" and Allen stared in shock as he left. Noticing Mariam beside him, he listened to her words that both she and Leonhart were aware Riliane's commands were absolute, despite agreeing that she was awful. Allen expressed his concern to her and the maid told him to remind by the Princess' side, stating that evaluating the nation was the adults' responsibility; Allen agreed.

Sometime after, Allen and another servant, Asan, responsible for cleaning the Hall of Sounds for the day and entered, entered after the meeting concerning a politician's fate was decided. While cleaning the expensive decorations, Allen watched Riliane return, seething and yelling for Minis. As she yelled at the minister regarding her lunch, Allen worried for Asan and noticed his suspicious appearance before seeing he held the Princess' missing knife. The servant suddenly attacked the princess and Allen instantly hit him to protect his sister. Using the blunt sword he was cleaning, Allen disarmed Asan followed by striking him before he could grab one of the decorative guns; having thwarted the assassination attempt, Allen watched as the guards seized him and learned Asan was sent to the guillitine the next day. Three days since the incident, Allen was helping Ney prepare dinner when Riliane stormed into the kitchen demanding to know who was stealing food from the palace before Ney admitted it was Leonhart.

After dinner, Allen was ordered by Riliane to meet her in her room. She congratulated the servant and complimented his swordplay; Allen told her he was taught by his father since he was young, neglecting to mention his father was Leonhart. Because of his skills, Riliane entrusted him with a message she suddenly wrote and put in a bottle: Assassinate Leonhart. Shocked by what he read, Allen paused and asked why she told him in such an odd manner and his sister responded that someone told her about it when she was young, though not remembering that person was Allen. Hearing her reasons for wanting to kill the warrior, much of it being Ney's gossip, Allen remained skeptical he could defeat Leonhart and Riliane replied that she had a plan to counter this. After hearing her scheme, Allen was told to it was their secret, reminded again of their childhood, and said he'd retired for the night.

By the afternoon the next day, Allen still remained conflicted. As he resolved to refuse his sister's awful wish, Ney entered the Servant Room to take a break and told Allen that she wished to speak about Leonhart. Allen brushed off her potential guilt over the situation but Ney stated she had overheard a conversation between Mariam and Leonhart about how Leonhart made him a servant so that he could eventually assassinate the Princess. Feeling cheated and used by his foster father, Allen left before Ney could finish, his mind made up. As he searched for a proper poison, Allen was unable to find anything lethal and settled with a chronic anesthesia for Riliane's plot. Sometime before the incident, Ney told Allen about Queen Anne's crushes. Standing outside her room that night, the servant overheard his sister and Leonhart's exchange until the Princess convinced him to drink the drugged wine.

Lent a sword by his sister, Allen confronted Leonhart in the Heavenly Yard at three the next morning and noted he could easily be taken down in his drunken state; he then drew his sword and clarified that the warrior had to die. As he approached, he taunted the drunken warrior's ability to defend against him and then barely avoided the onslaught Leonhart unleashed. Claiming their skill was equal, Allen entered his unicorn stance, knowing he'd see through his moves otherwise, and attacked but was swiftly countered. As their duel progressed, Allen was backed into a wall when Leonhart finally succumbed to the drugs and the boy noted how long he'd been resisting them. Admitting he had still feared losing to him despite the trump card, he preapred to deal the final blow when he saw a familiar hand mirror roll out of Leonhart's arms. His foster father explained it was his birthday present, a reproduction of the mirror Riliane own so he could check his appearance. Allen then asked why his father wanted to kill his sister and ignored it when his foster father appeared to be playing dumb. Stabbing him through the chest, Allen killed the Captain of the Royal Guard.

Merchant of Aceid
"You met with her on the way here... huh? Your face is very red; do you take a fancy to her?"

- Keel Freesis noting Allen's affection for Michaela

Soon after, Allen was sent on an errand to Aceid, capital of Elphegort to meet Keel Freesis for his generous donations of food to the starving Lucifenian populace. Before leaving, he met Gumillia, Elluka's apprentice, who criticized him for not using honorifics since she was older. After Allen apologized, she asked him to deliver an "amazing spring onion" to her friend, Michaela while in Aceid. Baffled, Allen continued on his trip to the neighboring capital but asked the driver to stop hours later, unable to take the bumpy roads to the city and wishing he could burn the Forest of Bewilderment instead of going around it. The driver gave him medicine to cure the servant's nausea, telling him he often had passengers suffer motion sickness. Seeing a crowd in the streets, Allen approached them and heard the sound of a beautiful singing voice, seeing a beautiful girl with green hair that he instantly fell in love with. When she finished singing, the crowds cheered her and Allen learned that she was called Michaela.

Allen went up and asked her if she was Gumillia's friend before delivering her the "amazing spring onion" that Elluka's apprentice gave him. When he was about to leave, Michaela revealed to him she worked at Keel's mansion and would lead him there. On their carriage ride, Allen and Michaela spoke about their lives as servants before he pointed out her shell necklace given as a gift. When they finally arrived at the Freesis Mansion, Allen waited for Keel in the other room, seeing Michaela and Clarith cleaning. Gast Venom interceded and told Allen about Clarith's clan. Allen noted the katana he wielded and Gast asked if Allen had heard about the Lucifenian Resistance before introducing himself as a mercenary and advertising his mercenary company, in case the Lucifenian monarchy needed him. Allen became nervous when Gast asked if Allen had killed someone, noting the darkness in his eyes, but was invited to meet Keel before he could respond.

In the next room, Allen offered gifts to Keel for his charity to Lucifenia and the merchant gladly accepted them before showing one of his collectibles, a sword that Gast had been interested in. Curious on Keel's reasoning, Allen inquired if he supported Lucifenia for business reasons; Mr. Freesis agreed and added that it was also because King Kyle asked him to do so. Asked if he knew any information on the state of affairs in Lucifenia, Allen answered appropriately. Michaela entered soon after and offered them brioche and tea. Allen took a taste and complimented Clarith's cooking. Keel commented on Allen's obvious feelings for Michaela and told the servant she was very sought after. As Allen was about to leave, he joined Michaela and his driver in a few jokes before departing for Lucifenia. Hearing Michaela as she waved goodbye, Allen poked his body out the carriage window and returned the farewell, hoping to see her again.

The next day, Allen reported his discoveries about Keel to Riliane and the other ministers. Elluka praised Allen's work and Riliane asked him what the day's snack would be. Allen responded brioche before Minister Minis gave his report about Marlon. Seeing the "very amazing octopus" given to Elluka, Allen asked what made it amazing, although the court mage only told him everything about it was very amazing. Afterward, he watched as Riliane discovered that Kyle Marlon had withdrawn his engagement to her, falling in love with a woman with green hair.

Green Hunting
"The Daughter of Green... is named Michaela, right? It’s the first time I've heard of her. Allen... what a pity, I never expected you would betray me."

- Riliane before ordering Michaela's murder

Mariam returned and reported that she could not uncover the woman's identity and Allen, cleaning the princess' room, watched as Riliane had a tantrum and ordered Minis to kill every woman in Elphegort with green hair. When Elluka objected and resigned, Riliane ordered Allen to kill her. Chasing after the mage, he discovered her and Mariam conversing when Elluka spotted him, telling him Lucifenia would perish. Speechless, Allen listened when Elluka asked what he would do. The servant told her he would protect Riliane. The former court mage left and Allen returned to Riliane's now empty room, seeing a shell necklace Kyle had given her and discovering that Michaela was the one who Kyle fell in love with.

During the Green Hunting, Allen visited an imprisoned Keel and learned that Michaela never loved Kyle and that she was hidden in a well. Seeing a shadow flash near the stairs, Allen turned around. Keel then told Allen that Kyle was heading from Marlon to smuggle Michaela out of the country and would arrive in a week. Allen visited Michaela's hidden location in the Millennium Tree Forest and asked if she was alright. Michaela told him how she had been separated from Clarith and began to cry. Apologizing, Allen said he would return, recognizing the love he felt for her. Before leaving, he tried confessing his love to her but gave up his attempt and left.

When he returned to the palace, he found Ney and Riliane speaking before the maid left; Riliane venomously told Allen she knew about Michaela when he tried to lie about where he had been. Riliane said she would forgive his apparent betrayal and wrote another message for her servant before placing it in a bottle and giving it to him: Kill Michaela. Leaving the room, Allen saw Ney outside, who apologized for telling Riliane about Michaela and asked what he would do. The servant forgave her, telling her he didn't know what to do. The next night, Allen made his decision and returned only to find Michaela stabbed at the bottom of the well. The sobbing boy confessed his love to her, wishing he could have escaped with her. As she died, Allen let out a scream of pain and sorrow.

Continued Service
"I always felt I was alone. But Allen, you... are the last one by my side. Even now, you did everything for me."

- Riliane's acknowledgement of Allen's loyalty

He returned to the palace and later watched Riliane, Ney, and Chartette spend time together before presenting his sister her brioche for the day's snack. During the meeting following the attempted assassination of Prime Minister Minis, Allen, Chartette, and Ney listened in from the adjacent corridor. After Riliane hired the Venom Mercenary Group, Allen was asked by Riliane to show Gast around the palace. As she left, Allen warned Gast he would be executed when he caught him staring at her figure. Showing the mercenary his room, he watched as Gast and Mariam greeted each other, and was told by Mariam to take care of her old friend. Later, at the Training Grounds, Allen watched as Gast defeated a group of soldiers who criticized the presence of mercenaries in the city.

Lucifenian Revolution
"You, for your sister, The Daughter of Evil, also sold your soul to the Demon of Asmodean? You guys are downright evil. Yet, in my opinion, the revolution was caused by the princess herself! Ha ha ha!" "Yes, I am an evil person. Maybe. The royal palace is overrun; it can also be said it is retribution from God. However, even if this is retribution, I will not let it happen!"

- Gast Venom and Allen

When the Lucifenian Revolution started, Allen continued to serve the princess and stay by her side. He eavesdropped on the war conference held during the initial outbreak when the recovering Minis spotted him. Apologizing to the seething prime minister for his rudeness, Allen asked if he was alright. The minister ignored him and the servant attended each war meeting to serve Riliane while the Lucifenian army suffered numerous defeats over the following weeks. When the palace was invaded, he and Mariam had been in the Servant Room. Mariam urged Allen to escape but the former prince refused to abandon his sister. After saying goodbye to him, Mariam left to defend the palace and Gast entered, saying he intended to flee and that Allen should tell the princess he didn't need the money anymore.

Desperate, Allen offered a bag of gold full of his pay, begging Gast to protect the palace and his sister. Hearing that she was his sister, Gast laughed and was in disbelief that he was willing to sell his soul to the "Demon of Asmodean" for his sister, calling him evil. Allen recognized the Revolution may have been retribution from God for their sins, but said that even if that were true, he would not let it happen. Gast, touched, changed his mind and accepted the money to defend the palace until his last breath. As he left, he told Allen that they were the same: evil.

Allen then attended Riliane's room, feeding her snacks as the revolutionaries slowly advanced toward her chambers. The princess broke down, wondering if she would die for her crimes and asking Allen to hold her hand. He complied and she was able to calm down and confess how she wanted to be like her mother but was left lonely and abandoned by everyone except Allen, thanking him for remaining with her. Squeezing her hand, Allen asked if she could grant him one wish.

The two swapped clothes as a result, followed by Allen telling Riliane to escape dressed as him. Reluctant to leave, Riliane begged Allen not go and the servant hugged his sister in response. Telling her his secret and revealing his identity, the perplexed Riliane asked why he would take her place. Allen told her she had been an evil girl and that since they shared the same blood, he would take her place as The Daughter of Evil. Telling her not to cry, Allen left the room and locked it, recounting to her about how their mother used to lock them in there to teach them a lesson.

Veins of Evil
"Oh, it's snack time!"

- Allen's last words

Allen left his sobbing and begging sister before being captured in the Hall of Sounds by the revolutionaries. Acting as Riliane, he struggled and haughtily cursed his captors and was later imprisoned underground. Allen would remain in his cell for a while before King Kyle came to announce to Riliane her execution date. The king saw that Allen was not his former fiancée and the twin told his sister's crush that he had killed Michaela. Angered, Kyle punched him and went forward with the execution to prevent civil and political unrest. Later, he believed he heard children singing; reminded of Michaela's singing, Allen began singing to forget his anxiety until an annoyed guard smacked him. Germaine visited soon after and Allen laughed when his foster sister told him he was to be executed, walking up to the iron bars to make sure it was her. Continuing his deception, the servant dejectedly told her to leave because he was tired. Geramaine recognized his face and, after discovering his identity despite his efforts to deceive her, Allen told her everything.

Hearing the whole story, Germaine told Allen he could be freed since he was only a servant, not the princess. Allen told about Kyle's earlier visit and warned her to be wary of him. After a moment of silence, she left and returned with the keys to the cell, telling him they had to escape together to a faraway land. Allen told her that she was the leader of the revolutionary army but his foster sister cast the notion aside and said he, Chartette, and her could live together like they used to even though their father was gone. Knowing her wish was impossible, Allen noted how she wore Leonhart's armor and asked if the damage to the shoulder was repaired. When Germaine became confused, Allen disillusioned her notion that Riliane had murdered Leonhart and compared his sister to her when he realized she had caused the Lucifenian Revolution to get revenge on The Daughter of Evil. Promising to assist her in her revenge, Allen revealed he was Leonhart's murderer and that he would be The Daughter of Evil.

Two days later at three o'clock in Millennial Square, Allen watched as mobs screamed and criticized him, believing he was his twin. With his head and arms fixed on the scaffold, the terrified Allen thought how he didn't want to die. Suddenly, he heard a mysterious song, and began hallucinating, remembering the time when they escaped the palace and Riliane held his hand. Imagining he was holding her hand, he relaxed and heard the executioner ask if the "princess" had any last words to God. Deciding to keep up the ruse to the very end, Allen answered aloud, "Oh, it's snack time," before the guillotine blade fell and he was executed, hoping to play again with his sister in the afterlife.

After Death
As Clarith prepared to murder Riliane on the coast by the Held Monastary, Allen's spirit appeared and prevented her from stabbing his sister. Struggling, Clarith became angry at Allen's sad expression before finally realizing she was tricked by the Demon of Wrath in the form of Michaela. He disappeared immediately after. Five years later, when Abyss I.R. surrounded Yukina Freesis with blue flames conjured by the Marlon Spoon, Allen spoke to Yukina, saying she needed to survive so that she can write her story. Yukina asked Allen if he could help her but, being dead, Allen answered he was unable to. Instead, the spirit told the writer that he'd let his sisters help. Soon after, Riliane came to Yukina's rescue and Allen manifested right beside Germaine as she faced and ultimately defeated the wicked sorceress. At some point, a message in a bottle washed up ashore at the spirit's feet. Sometime after this, Allen became Irregular and was confined to a black box, which was put inside the Clockworker's Doll.

Legacy
"However, it doesn't matter. What's important for Elluka is that she did not get the Four Mirrors vessel of sin. What's important for me is that he is no longer one of the gears."

- Ma speaking about Allen

Historically, Allen's sacrifice would never be mentioned and his sister was the one who officially died as a result of the Lucifenian Revolution. The history books was noted as the adopted son of Leonhart Avadonia who gained Riliane's favor as a servant and swiftly fled the Lucifenian Palace during the Revolution. He would often be portrayed as a disloyal and unfaithful person in Lucifenia's history. However, Yukina Freesis wrote a novel about the true Story of Evil titled "Daughter of Evil" that had gained popularity around the world centuries later during the time of Gallerian Marlon. The judge was intrigued by the idea that the servant swapped places with his secret twin sister but remained skeptical of its accuracy to the actual events, despite Ma's guarantee that the novel was true.

Personality and Traits
"Riliane... You have been an evil girl... If you are an evil girl, then your evil blood also flows through me. If you are The Daughter of Evil, then I’m The Servant of Evil. So it doesn’t matter. I will take your place here while you live on..."

- Allen

Allen was responsible, altruistic, and selfless, in contrast with Riliane. He willingly accepted being adopted by Leonhart because it was the best for everyone, and even showed kindness to the Demon of Gluttony when it attempted to possess him. When everyone else believed Chartette was dead, Allen supported Germaine and went along with her to find their friend. Despite this, Allen did feel pride when Michaela praised him and boasted to himself about his skills at concealing his identity as his sister. Allen also was a bit shy, taking him some time to open up to the people. He did not take jokes or amusement lightly; few notable examples involve Gumillia poking at their age difference and Michaela referring to him as an "exotic boy" which normally would have angered him. Ironically, he often made dry remarks in his mind about what he heard and openly cracked a few jokes with Michaela and his carriage driver before leaving.

Allen was very dedicated to his twin sister and worked hard to please her. Eventually both became very intimate as time progressed and he continued to obey her will. Allen found comfort when holding her hand and loved his sister deeply. This loyalty to his sister was greatly strained by his love for Michaela, whom Allen felt he couldn't kill. Similarly, Allen refused to kill Leonhart until he was told that his foster father was using him to assassinate the princess.

Skills and Abilities
"Even in my opinion, your sword is very powerful."

- Riliane's thoughts on Allen's swordplay

Allen was rather capable of combat, having thwarted Asan's assassination attempt on Riliane's life and managing to defeat his foster parent in sword combat (although he was drugged at the time). Germaine called him a "fencing genius" and wondered why Leonhart made him a servant instead of a member of the Lucifenian Royal Guard. Allen was also skilled at horse-riding, although he hid this fact from his sister. He was also very knowledgeable about politics and was revered by the ministers for his mind. He acknowledged the political ramifications for any action and understood the reasoning behind it, such as when Kyle continued with Riliane's execution despite knowing that Allen took her place.

After his death, Allen freely manifested himself as a spirit, appearing to Clarith, Yukina, and Germaine. During the encounter with Abyss I.R., it is possible that Allen might have communicated with Ney after her soul has been merged with the Glass of Conchita. He also seemed to have a strange ability to appease the effects of the Vessels of Sin; he also was able to earn the gratitude of the Demon of Gluttony and calmed Clarith down when she was influenced by the vessel of Wrath.

Character Connections
Riliane Lucifen d'Autriche: Allen's twin sister. After they were separated, Allen kept his identity secret from Riliane until the very end. He believed her to be an innocent and lonely girl deep down, and devoted himself to her protection. Allen felt comforted by Riliane's presence when afraid, such as when they were children or near his death.

Leonhart Avadonia: Allen's adoptive father. Allen held a high respect for Leonhart and saw himself as unworthy of having him for a father, never referring to him as such and instead just calling "Captain Leonhart". He felt deeply betrayed and hurt when told Leonhart was using him to get at the princess and was confused about the knight's reasons even as he died.

Germaine Avadonia: Allen's foster sister. They bonded over their rescue of Chartette and became very close, Allen asking after Germaine's wellbeing later when he was working in the palace. Their relationship became strained on his end after she sought to avenge Leonhart, something Allen regretted. He often thought of her as his "righteous sister" and depended on her swordsmanship to save Yukina after his death.

Chartette Langley: Allen's childhood friend and fellow servant of Riliane. Allen always tried to keep Chartette out of trouble, rescuing her when they were kids and supervising her work to make sure she didn't slack off or do any damage with her strength. The two of them were able to converse on a less formal level than other servants.

Ney Futapie:  A fellow maid of Allen and his half-sister. Allen trusted Ney more than Chartette with discussing matters such as Michaela's ordered assassination or Leonhart's reasons for sending Allen to the palace. He held no ill will towards her for the rumors she relayed to Riliane and himself, comforting her whenever she appeared distressed.

Mariam Futapie: Allen's superior as a chamberlain. Allen saw Mariam as an employer for the most part and found her character inscrutable. Nonetheless, he spoke to her about his confusion at having such a different role from his sister, Riliane, and saw her as an ally. When the revolutionaries reached the palace, he shared words of farewell with her before she departed to defend the Heavenly Yard.

Michaela: Allen's crush. Allen fell in love with Michaela after listening to her sing and having a long talk with her in the carriage ride. He found her very beautiful and talented, and was tolerant of her teasing when, elsewhere, he would become angered. He became conflicted between his love for her and devotion to Riliane after learning she was Kyle's lover, and eventually was heartbroken by her death.

Keel Freesis: A merchant whom Allen visits. Allen found Keel to be a very intelligent and pragmatic businessman, unable to fully understand the life that the latter lived. Despite this, he appreciated Keel's tendency of putting loved ones first due to his own devotion to Riliane and Michaela.

Kyle Marlon: Riliane's fiancé. Although only knowing him from afar, Allen expressed an intention of destroying him for making Riliane unhappy. After being arrested he viewed Kyle as a potential problem due to his overpowering emotions, but agreed with his political motivations to continue with the execution.

Gumillia: Allen's superior in the palace as Elluka's apprentice. He initially views her with less respect due to her young appearance, but is quickly reminded of her superior status and age. He is bewildered by her cryptic nature in regards to the Amazing Spring Onion and became frustrated by their conversations often ending in awkward silence because of her lack of social skills.

Hänsel: An intended past incarnation. Allen was fated to be a reincarnation of Hänsel and shares the boy's appearance but, due to the disturbance of fate caused by Abyss I.R. and Prim Marlon, no Hänsel was born during that cycle.

Irregular: Allen's future self. Irregular manifests sometime after Allen's death, and has been referred to as Allen by name.

Conceptualization and Origin

 * Allen's name is a corruption of his birth name: Ale xiel Lucifen d'Autriche, given by his foster father in an attempt to conceal his identity.
 * The name Allen is Celtic in origin, meaning "fair, handsome, noble, bright, and harmonious"; in numerology, the name is associated with loving and generous people who enjoy being appreciated for their ability to be responsible and consider their family to be the most important thing in their life.
 * His adopted last name, Avadonia, seems to be a corruption of Abbadon, meaning "destruction" in Hebrew.
 * Allen's name is partially inspired by the name of his representative Vocaloid, Len, using "len" at the end of the name; similarly, his birth name, Alexiel, shares the "le" with Len.
 * Allen, and by extension Irregular, parallels Jesus Christ; both were punished for crimes they did not commit, were executed at 3 o'clock, and appeared to their allies many times after his death.

Curiosities

 * Allen is executed the day before his fifteenth birthday.
 * In the story, Heavenly Yard, the god of creation, Sickle, refers to Irregular as "Allen" himself.
 * He shares the same birthday (December 27th) with his Vocaloid.
 * Like his father, Allen styled his hair in a ponytail.
 * As Riliane was an intended reincarnation of Gretel, Allen was presumably fated to be the next reincarnation of Hänsel, but Ney's birth disrupted the cycle and no Hänsel was born at all.

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