Sateriasis Venomania

"Something like that. That way I can invite some more women into my harem."

- Duke Sateriasis Venomania

Sateriasis Venomania, previously known as Cherubim, is a duke of the Beelzenian Empire, governing the territory of Asmodean, who was infamous for abducting and sexually defiling multiple women against their will. Agreeing to a deal offered to him, he sealed a contract with the Demon of Lust.

Early Life
Born to Ilotte and Nylpho Venomania in Asmodean, the boy's mother committed suicide due to his physical deformity: a small face on his right cheek. Labeled as a "demon child", the Venomania heir was imprisoned in the mansion's basement by his father, forbidden to ever leave. Ignored and considered non-existent, the boy remained in his cell. At some point, a guard began teaching him how to write and the boy started keeping a diary, writing about his lonliness in the dark cell.

On July 19, EC 123, he met met Sateriasis, his younger half-brother and the two began interacting with one another. On September 7, Sateriasis snuck his brother from his prison during the night to see the outside world. Although staying from the sight of the people, the deformed child enjoyed the experience and began sneaking out with his brother more often. On October 16, during one of their outings, the brothers headed towards a forest and the deformed teenager met Gumina Glassred. Falling in love with her,  the three played together often over the years.

At some point, due to his brother begging their father to free him, he was allowed out of the basement as a servant, receiving the name Cherubim; although he was reviled for his appearance by the other residents, he continued to have a close relationship with Sateriasis and Gumina. As time progressed, Cherubim grew envious of his brother's beautiful face and popular demeanor. Around EC 135, Cherubim learned of his younger brother and Gumina's engagement. Although devastated by this, Cherubim decided to confess his feelings to Gumina and called out to her. Before he could make his confession, the young man was suddenly mocked and scorned by Gumina in public.

Angel to Demon
"That's right. It's okay. As proof of the contract, you've certainly received blood filled with Lust. Now, let's dance."

- The Demon of Lust

Heartbroken and humiliated, Cherubim took a sword and slaughtered his father, stepmother, younger brother and the entire staff the very next day. After his rage faded, he became overcome with guilt and prepared to commit suicide with the blade; he then heard someone asked why he was searching for death, and jerked in surprise to see a white-haired woman in a cloak with him in the dining room, his hands trembling as he stared. After she asked if he hated everything around him, Cherubim, slightly calmed, answered that he couldn't attain anything either in the past or future.

When the woman inquired what he desired, he replied he hoped for someone to love him and was then asked if his massacre fulfilled that wish. Brought to tears, Cherubim explained he only foolishly lost more, determined now to end it all with his death since he wasn't supposed to exist anyway. Asked why he didn't just grab his desire instead of end it with death, Cherubim replied that it wouldn't have ended in such a way if he could. The mysterious woman then affirmed she could fulfill his dream, retracting a katana from her robe. Surprised, Cherubim questioned the woman's command to impale himself with the katana instead to obtain what he desired. She bluntly replied that she was a sorceress and was suggesting he make a contract with a demon. He voiced his surprise at the word and she asked if he was frightened by such a word. Brushing off the thought, he explained his familiarity with it.

Tossing aside the shortsword, Cherubim took the katana from her; he then expressed his doubt that she was a real sorceress but mused how it only changed the weapon he killed himself with if she was lying. Suddenly hearing a voice tell him to "leave" everything to it, he searched frantically for its source, explaining what it said to the sorceress. After she inquired if it caused him discomfort, he noted that it felt soothing, and she explained it meant the demon was giving him the right to make a contract with it. Convinced she was telling the truth, he drew the katana and prepared to stab himself, saying he would do anything at this point if he could attain Gumina.

Piercing the blade through his chest, he forged a contract with the Demon of Lust and was filled with its magic, turning his blood purple. Granted newfound powers, Cherubim changed his face to that of his younger sibling to become the new "Sateriasis Venomania". After the sorceress introduced herself as "I.R.", Sateriasis agreed to keep the sword to gain more power, so long as helped her whenever needed, and use that power to seduce women for his personal fancies. With the powers of the Demon, Sateriasis learned of his abilitiy to seduce women with his gaze, manipulate memories, and transform himself. Soon after, he unintentionally wiped his own memory while using his powers.

Duke of Asmodean
Masked as his brother, Sateriasis believed himself to be the only survivor of the massacre. In response, the Beelzenian Empire had Sateriasis succeed his father as Duke of Asmodean to keep up appearances and avoid having only an earl manage the region. Because of his apparent memory loss, Marquis Glassred took over managing Asmodean in Venomania's place. The new duke kept himself in his manor, secluded from the public, due to his lustful urges. In late EC 135, the Marquis visited and the two got into an argument over his solitary lifestyle and stopped visiting him afterward. During the Lasaland New Year Festival, Venomania, starving and hoping to fulfill his desires, instinctively left his mansion and meandered into the capital. The Duke then collapsed in the street and was taken in by Lukana Octo.

After he awoke in bed, Lukana asked how he was feeling and Venomania was confused before recognizing he was Sateriasis. Once he learned he was in her uncle's shop, he apologized and said he was hungry. As she brought the food, Sateriasis took some bread from the plate and began eating it, insisting it was delicious. He thanked her after he finished and Lukana inquired why he was walking through the streets in tattered clothes and starving. The Duke noted it must have been a strange sight and the tailor clarified that she was just a visitor helping her uncle with the tailor shop. Venomania said she must've been an expert of the craft and Lukana mentioned how rumors of him going mad had been spreading. Sateriasis brushed it off, saying his current appearance after the massacre naturally drew people to that conclusion. Confirming for her that the murderer had yet to be captured, he expressed guilt over causing the citizens to worry.

Thanking Lukana for her kind words, they introduced themselves to each other and Venomania insisted she didn't address him so respectfully, explaining how the title was forced upon him. Lukana's uncle then came in and inquired about his health and the Duke apologized for causing them trouble and promised to bring them a thank you gift sometime in the future. When asked if he was already leaving, he elaborated that he didn't want to cause them any more trouble. Because it was getting dark, the tailor shop owner assigned his daughter to escort the Duke and then asked him to change into the new clothes he brought. Inspecting them, he was impressed by the quality and told Lukana had made them; noting his intuition of Lukana's excellent skills were correct, he promised to send the clothes' cost with his gift and asked for them to leave while he changed. Once he finished, he stepped out and he traveled back to his mansion with Lukana.

After they entered the mansion, Saterasis began to leer over Lukana while she was gawking at the luxurious home but quickly restrained himself after she noticed. When asked, Sateraisis affirmed he was living there alone, though able to survive because of his wealth, and sat down in the dining room. Lukana asked why and he explained it was because he lost his memories and couldn't remember the murderer's face, questioning if she found him strange. Lukana then asked why he went through the city streets and said it was because he had run out of food and wanted to find two women. After the tailor questioned if they were his lovers, he said he could only remember their appearance and, describing them, asked if she had seen them. Lukana said she couldn't, especially as a visitor, and the Duke apologized for the silly question.

Lukana noted they were probably an Elphe and Netsuma that he was talking about and recalled that his mother was also an Elphe; the Duke said he thought they might've known her and, surprised that Lukana knew so much about him and the current affairs, explained that he was grateful for the Marquis' help with managing the state. Lukana then suggested he ask him about the women and Venomania timidly described their argument and how difficult it was for him to currently visit the Marquis. Once he thanked the tailor for her kindness, he noted how cold it was and lit the fireplace, stating he no longer had to worry about a new set of clothes since he bought hers. Lukana objected to him wearing only those clothes regularly, insisting he hire a tailor, and Sateriasis grabbed her hands and offered her to be said tailor. Saying he enjoyed her designs and would pay for both the clothes and her lodging, he encouraged her to stay in a guest room at the mansion while she worked and she eventually accepted.

With the tailor working at the mansion, the Duke purchased the highest quality fabric and tools she needed, and he noticed how she was working late into the night, though making amazing clothes for him. Two weeks since she first accepted his request, Venomania took a stack of books from the library and sat down in his favorite chair to start reading. Reading the diaries of everyone, save for himself, Venomania grew irritated that "Sateriasis" didn't keep such things. Concerned Lukana was overworking herself again, the Duke headed towards her workshop and found Lukana sleeping on the work table. Taking a blanket from the bedroom, he placed it over her then sat in a chair nearby, staring at her sleeping form. Feeling gratitude and lust, the Duke wished he could've made her his before she left and stopped himself as his thoughts became increasingly dark in their desire.

Recalling his lies to her about looking for specific women, the Duke was convinced it was best they didn't meet again when he noticed she was seemingly dreaming. As he was about to wake her, Lukana awoke herself and screamed, demanding he didn't go near her. Once she calmed down, the Duke asked if he did something wrong and said it was just a nightmare. Apologizing, she began packing to return to her uncle's home, having finishing the sewing for the day, and the Duke wished her well on her journey home. Bidding her farewell, he became conflicted as he watched her leave the estate. She then called out that she'd finish the clothes in five days, hoping he'd look forward to it, and the Duke was happy to hear her refer to him more affectionately than before.

He later seduced Lukana with his powers and accepted her as the first of his harem, receiving a personal bracelet from her as a gift. The following month, he repeated the process with Mikulia Greeonio and gifted her an emerald necklace as a reward for coming back, indicating that she was one of his "favorites". The following month, he entered the Glassred estate and enchanted Gumina and her servant, Carol Shields, manipulating Gumina's memories so that she would forget their childhood together. By early April, he had also seduced over a dozen other women, hiding all of them in the basement in which he used to reside. At some point, I.R. revealed her true form as a cat to the Duke and her relation to the famed craftsman, Clockworker. At some point, he met one of I.R.'s subordinates, Tette Cetera. Taken by her youthful beauty, he enchanted her with his powers.

Visit to Mystica
"You don't have to be so respectful. I can't even get a clue on the disappearance cases. I'm incompetent."

- Duke Sateriasis

While attending to his harem, Sateriasis noticed a visitor enter the basement and apologized to Mikulia while removing her from his lap. Noting it appeared to be a lady, he initially welcomed the woman before realizing it was I.R. Unenthusiastically, he asked why she came and she responded by asking why he was so rude before asking if he was ready. Querying what she meant, I.R. questioned if he was playing dumb and warned him that he would then need to return the sword. After considering the situation, the duke gave in, asking if they would leave now when Lukana asked where he was going. Explaining he would just be gone for a while, Venomania entrusted the former tailor with the mansion in his absence.

Venomania asked if they would leave her "body" and I.R. affirmed that it was more convenient, charging Mikulia with taking care of it. While hurrying the sorceress, Gumina grabbed his hand. Turning to face her, they shared a kiss and he told her that he had to go. He left the mansion with I.R., hiding the cat within his coat as they traveled. Directed to Mystica in search of an altar in the Misty Mountains by the sorceress, the duke traversed the town before seeing Lilien Turner in the local bakery. As he entered the shop, he overheard two women discussing the recent disappearances and spoke aloud how those rumors were popular in the town. As she looked to ask about his bill, Venomania enchanted her with his gaze and mused that he wasn't shopping, just searching for an address. At that moment, Lilien's father came in, yelling at him to either buy something or leave. While watching the two bicker, her father suddenly recognized the duke's identity and knelt down before him with his sincerest apologies.

After he explained he was traveling the nearby mountain range, Lilien was told by her father to guide him and the two traveled together through a forest leading to their destination. Venomania apologized for having her guide him and the baker said it was alright, asking why he wanted to go to the Misty Mountains. He said he had business at the ruins over there and she responded that the altar there was haunted. Chuckling at her comment, he noted how she acted meeker compared to earlier and she fervently explained it was because she was traveling alongside Duke Venomania. In reply, he told her she didn't have to be respectful since he was incompetent, unable to solve the recent disappearance cases.

Sateriasis told Lilien that those missing were beautiful women like her, telling her to take care of herself. Embarrassed, she responded that she was not that beautiful in comparison to Lukana. Surprised, he asked about the name and learned that the two girls were friends before she disappeared three months ago before noting that he remembered how she was the first woman reported missing. Once they arrived at the foot of the mountains, Lilien explained he would just need to follow the mountain path to reach the ruins. Thanking her, he expressed his hope that he would find her friend soon. As she lackadaisically said she believed him and that Lukana would be alright, he noted her frankness.

Responding once again it was because she was speaking to the duke, he grabbed her shoulder and qualified that she was still a bit stiff. He flirted that she could stay there in front of him and asked if her tomboyish attitude with her father was her normal self. Stuttering, she said it wasn't and he responded that she looked more attractive when she acted naturally. Before she could finish her response, he let go of her shoulder and headed for the mountains. As he continued on his journey, she yelled if it was alright for the duke to traverse the mountains alone. Chuckling, he told her he had his retainer, opening his coat to let I.R. crawl out upon his shoulder.

Lust for Power
"The-then did you finish your errand?''" "''Yes. And I'd like to stay in this town for a little while. But in this sandy and dusty town, what I'm attracted to is the flower that blooms among the sand."

- Venomania flirting with Lilien

Led by I.R. to the altar in the ruins, the duke commented with disbelief that Lilien had been Lukana's acquaintance. I.R. chastised him for not knowing more about the women he entranced and the duke responded that he met Lukana in Lasaland so he didn't know. When the sorceress noted he should pay more attention to the women he acquired, the duke found it unusual that the cat was caring about the other women. The sorceress said she was once a woman too and the duke noted her claims of being a witch working without the Devil's power.

Reminded to fulfill their contract if he wanted more power, the duke remembered his Gumina at the thought of Lilien's mention of a "childhood friend". When he returned to his senses, he touched the altar and invoked the powers of Lust, opening a secret passage to a burial chamber. Sensing what I.R. was looking for, he opened the stone coffin before him and found a spoon among a pile of treasure. Confident in his senses, he stated he found a second vessel of sin. The cat denied it and, surprised, he noted that it shared the same wicked aura as the vessel of Lust and she explained it was a magic tool made by her father. Realizing it was just another Clockwork magic tool from the extinct Magic Kingdom Levianta, he found it worthless and tossed the weapon. Leaping off his shoulder after it, I.R. told him not to mess around.

Annoyed, he scoffed that he should have been told about the spoon beforehand, and asked if they should return home with the spoon. As the sorceress cursed about burning the officer, Tette Cetera, Venomania stated he wanted to avoid killing anyone in his territory, seeing no gain in it. When asked if it was because her associate was a woman, he expressed his interest in adding her and other women into his harem. After the cat returned to his shoulder, they exited the tomb and I.R. noted it was dark and asked where they would seek shelter. He answered that Earl Ferdinand would accommodate them and she questioned his judgement, noting that the earl was investigating rumors surrounding him; Venomania said it was his reason for going there. While seeking refuge at the Ferdinand estate, I.R. attached herself to his wife and Sateriasis gathered the entire staff and remaining Ferdinand family living within the home and massacred them, leaving their bodies in the room.

The next day, he returned to the bakery to take Lilien out for a stroll but was stopped by her father. As the man argued about her leaving her work at the bakery, Venomania paid him a bag full of coins for her time, much to his pleasure. Approaching her stand at the bakery, he queried about her shocked expression. She responded with surprise that he came to visit her, and he said he had promised to. Asked if he finished his errand, he told her he had and that he wanted to stay in Mystica for a little while, saying he was attracted to the flower that bloomed among the sand. Seeing her blush, he asked if he liked his flirt before saying they should just go on their tour of the town. Lilien explained that she couldn't since she left the shop too many times already and Venomania noted how she shouldn't worry, noting her father "fought hard" for her time, smiling at the man caressing the pouch of coins a few meters away from them.

As he followed Lilien across town, she showed his the different vendors and items for sale. Hearing her hum to herself, he politely offered her a dance and the two happily danced together in the streets. Later that day, he returned to the mansion greeted by I.R. who commented that he was late. Brushing it aside, Venomania was curious when the sorceress asked she follow him. Doing so, she revealed Earl Ferdinand's secret room, pointing out the personal womanly possessions he hid. Looking upon the portrait that caught his eye, he asked who the woman was and I.R. responded it was the Beelzenian Empire's third princess, Maylis Beelzenia. Fascinated by her beauty, the duke offhandedly spoke aloud about how he had heard the rumors and expressed interest in acquiring her.

Power of Lust
"The power of my Lust will stop this man from speaking. How... bad, for you will be physically gone!"

- Sateriasis during his demonic transformation

Several days since his outing with Lilien, the duke bought her a lavish dress and invited the girl to the Ferdinand mansion that night. That evening, he took her to a bedroom and she remarked that he'd return home the next day; he explained he didn't think it would be good to stay much longer. In response to her silence, he grabbed her wrist and told her to come to him, pinning her to the bed before kissing her. After their kiss, he noticed she looked shocked and asked what was wrong. When she realized they were wearing the same bracelet, he revealed it was Lukana's gift to him. Utterly shocked, he commented how he expected her to figure it out by now, revealing that he was behind the disappearances and that Lukana now lived with him in Lasaland.

Seeing her conflicted expression, he justified that he didn't force the girls as they all wanted to be in his harem, saying she could return with him to Lasaland to see Lukana again. As she broke down and began to leave, he sighed and expressed disappointment at having to use his powers to get her to submit but gladly invoked his abilities. Forcing Lilien to completely submit to him, he had her lay against him upon the bed when an armed intruder entered the room. Demanding he step away from Lilien, they stood up and embraced one another as the duke questioned if he was a robber or simply a jealous poor man. Called a murderer, Sateriasis realized the intruder saw the mansion's corpse-littered room. Sitting Lilien on the bed, he said it couldn't be helped, using the powers of Lust to undergo his demon transformation as he said he described that he would destroy the man to keep him from speaking.

Battling the intruder, Venomania disarmed him and injured his arm, taunting that it would be best if he jumped out the nearby window and ran away. In response, the intruder attacked him, prompting the duke to leap into the air and retaliate. With a single sweep of his claws, he sliced the sword to pieces and knocked his opponent to the ground. As the man attempted to stand again, Sateriasis asked why he was trying so hard as he never even said he was in love with Lilien, so his efforts wouldn't even be acknowledged even if he managed to take her from him. The man asked if the duke ever really loved someone, touching a nerve. During his explanation, the intruder collapsed from sudden fatigue. Repeating the question he was queried, he looked at Lilien before reverting his transformation and responded that he had while imagining Gumina.

Dressing himself again, he traversed the mansion's corridors until he found I.R. alone, without her "body". The sorceress asked if the fight was over and the duke replied it was. With the sorceress on his shoulder, they left. On their way back to Lasaland, the sorceress questioned if it was alright that he left Lilien there. Sateriasis told her it was fine as she would come to him on her own. Urging them to hurry back to Lasaland, confident his harem were eagerly awaiting his return, the sorceress suggested they pick a fast carriage. He told her they would take any carriage going to the city, saying he would make love with the woman once he returned anyway. I.R. revealed that she extracted some interesting information from Tette Cetera. Venomania recalled how she too had responded to his love, much to I.R.'s amusement. Sometime after, he returned to his mansion in Lasaland, attending to his harem. While doing so, Lilien came to the mansion and entered his basement. Like the others, Venomania reached out his hand to Lilien, asking that they dance. Complying, the two danced in front of his harem.

Depraved Lunacy
"Ha... The things you end up liking!"

- I.R. regarding the Duke

The duke continued his antics for a year, adding more women to his harem as time went by. He seduced the Beelzenian spy Neruneru Nerune and, through her, Princess Maylis. At some point he encountered the homeless Hakua Netsuma and, reminded of I.R., seduced her into his harem as well. He also traveled to the town of Lisa-A following rumors of the beautiful dancer Lolan Eve; although she was a lesbian, he used the power of Lust to seduce her too. Eventually, he even abducted Queen Yufina of the Kingdom of Marlon.

While attending to his harem, Venomania became aware that I.R. was targeting Lukana as a new host body and obstructed the sorceress from doing so. Afterwards, he instructed the tailor to keep an eye on the sorceress using her prediction dream ability. At some point, he spent a night exchanging information with Lolan Eve and her corpse was discovered the next morning, to his apparent indifference. Around that time, Venomania looked upon his portraits and was reminded of his past. Angered, he burned all his old portraits in his fireplace. After burning them, he drew the adjacent Gumina close to him and kissed her.

That year, another woman entered the basement and approached Venomania. Asking to dance with her, she complied and the two embraced. While coursing his hand through her hair, he suddenly felt a sharp pain and, after releasing his embrace, looked down to find his chest bleeding. The woman removed her wig and revealed herself as Kachess Crim, having used his disguise to successfully stab the duke with a knife. Sateriasis collapsed from the wound. As he futilely attempted to stop the bleeding, the magic of Lust infused in him began seeping between his fingers. Without the magical fluid coursing through his veins, his power dispelled and the women he abducted came to their senses and began fleeing his mansion. In tears and left to die, the duke saw Gumina, the last to leave the mansion, pause and look at him for a second. Realizing he never confessed, he desperately called out to her to say he truly loved her. However, because of both despair and a lack of breath, he was unable to speak and breathlessly watched her leave him before dying of his injury.

Legacy
After his death, I.R. named the vessel of Lust the "Venom Sword" to express her "thanks" to him. At the end of the incident, the exact number of victims that Venomania had in his harem was unknown. Some theorized it was around twenty women while other claims said the number of victims was over a hundred. Many of those affected were impregnated and produced offspring in Venomania's bloodline who were "cursed" by their forefather's blood in their veins. Due to his interactions with the Venom Sword, the children Sateriasis sired with Maylis, Lukana and Mikulia and their descendants gained the potential to develop Hereditary Evil Raiser Syndrome and pass it onto future generations. His children later led to many famous descendants, including Banica Conchita, Gast Venom, and Clarith, that had also become involved with the vessels of sin. His bloodline lasted into the late 10th century EC with Gammon Octo.

Earning the moniker as the "Duke of Lust", Levin followers of the Held sect began spreading word of Sateriasis' demonic deeds. With the duke memorialized as a "demon" in myth, devout Levin followers often persecuted those identified as his descendants, labeling each of them as a "Demon Child". As time progressed however, the more supernatural elements of the Duke were deemed fictitious in the modernizing society and his name was rarely spoken by the late EC 900s. Despite this, his crimes were still remembered and one criminal, Scherzer, even attempted to mimic the incident Cherubim had caused. Less than a century after the duke's death, Asmodean became an independent state and Venomania was regarded as a national hero for the country. As a result, Duke Venomania became a part of Asmodean culture, such as the Asmodean Emperor deriving several of his powers from the Venomania dukes.

Personality and Traits
"At least you're consistent."

- I.R. regarding Venomania

Sateriasis was an arrogant, conceited, and lustful man, consumed by his own sexual desires and increasingly self-absorbed. As a child, the previously deformed Venomania was lonely and despised as a "demon child" by his own father. Because of his half-brother's kindness, the boy was able to experience the world and became close friends with him and Gumina Glassred and would often play with them throughout Lasaland. After being made a servant, Cherubim was tolerant of the ridicule and scorn he faced but soon grew jealous of his brother's handsome appearance. Cherubim also had a deep infatuation with Gumina since he had met her, holding his love for a decade. After learning of Gumina's engagement to his brother and being reviled by his love, Cherubim became heartbroken and the constant ridicule he suffered embittered him to the point of spitefully murdering his family and attempting suicide. However, when given the chance to steal his brother's face and identity and gain great power, he ultimately chose to take it and became obsessed with obtaining more power for himself.

Outwardly, "Sateriasis" appeared charismatic and kind to others, masking his involvement in the disappearances and acting as a humble and deeply concerned duke to his people. However, his personal life hid his darker nature, brainwashing women and using them to satiate his sexual desires, although initially revolting this domineering behavior after his memory loss. Venomania always considered adding any beautiful women he encountered to his harem, regardless of their social class or occupation. Treating his concubines like possessions, he had little care for their personal lives or who they were before seducing them. Similarly, he showed little compassion for their well-being, killing several of them to fuel his powers and caring little for how they would actually feel about being used. This disregard extended to others who threatened him. Sateriasis would slaughter anyone who could potentially discover his secret. As his harem grew, Venomania became increasingly depraved, eventually seducing even children for his personal fantasies. Among his habits, Venomania would extend his hand to a new member of his harem and dance with her once she arrived.

Because of these abilities, the Duke was convinced in his own invincibility and grew complacent with his powers. Often, he acted indifferent, wrapped up in his own interests, regardless of his tardiness or the occasion's importance. As his wanton desires continued to escalate, his attention to his action's consequences plummeted. To an extent, this selfishness also made him childish, refusing to do anything cumbersome unless threatened to lose his power and making women chase after him rather than simply taking them back with him. Picking "favorites" among his girls, Venomania sometimes rewarded them for "returning" to him, expecting their complete obedience to him. He also taunted his opponents in battle, suggesting that they run away when faced with his overwhelming power. After his visit to Mystica and battle with Rajih, Venomania remembered the pure love he had for Gumina. Resentful of his old name and appearance, Venomania eventually burned any portraits of his past self and became more and more obsessed with his harem. As his lustful kingdom fell apart, the Duke fell into despair. In his final moments, he desperately wished to confess his feelings to Gumina, hoping to let her know who he was and how he had felt.

Skills and Abilities
"Heh...Don't forget why we're here. If you want further power..." "I understand."

- I.R. and Venomania

Despite being trapped in a basement for part of his life, Venomania was very shrewd; he was extremely successful as the Duke of Asmodean and well-versed in reading, writing, and, of course, dancing. With his position of authority, Venomania was a capable actor, portraying himself as a respectful, humble, and kindhearted duke and that he was as confused about the mysterious disappearances as everyone else. Extending his reach as one of the Five Dukes, Venomania remained in touch with current affairs and was able to track the progress made with the Empire's investigation into the disappearances. During his tenure as a servant, he was capable in performing the duties required of him. He also had basic knowledge of the Magic Kingdom Levianta and its figures, such as the Clockworkers and their creation of magic tools.

After sealing a contract with the Demon of Lust, Venomania was infused with Lust's magic, granting him new powers. By simply looking into a woman's eyes, Venomania could instantly make the woman infatuated with him and,  when invoking his full power, could brainwash her to absolutely submit to his will or make them fall madly in love with him. His powers over the mind similarly extended to memory manipulation, able to erase someone's specific memories, regardless of gender. Finally, he could tap into his powers of Lust to undergo a demonic transformation, giving him wings for flight and claws that could hack iron or steel swords to pieces in a single swipe. Using these abilities to perfect his technique, Sateriasis easily charmed and acquired new members of his harem without being discovered and, in some cases, killing those who were investigating rumors surrounding him. However, to keep his powers' potency intact, he was required to constantly have intercourse and to take the life energy of some in his harem.

Character Connections
I.R.: Venomania's partner. While initially bewildered by her sudden appearance and skeptical of her claims, Sateriasis was willing to make a deal with I.R and the Demon of Lust, although he was less enthusiastic with helping her achieve her own goals and expressed more interest in building his harem. He was amused by I.R.'s secretive nature and the concern she expressed about his dealings.

Gumina Glassred: Venomania's childhood friend and later member of his harem. The duke became friends with Gumina at a young age and fell in love with her. He became devastated when she publicly mocked him and her engagement to Sateriasis was revealed, this driving him to seal a contract with a demon. Nonetheless, Venomania continued to love her until his death, though his love was warped by his heartbreak and lust.

Lukana Octo: A woman Venomania's harem. The duke found Lukana to be very beautiful and appreciated her skills as a tailor, seducing her using the power of Lust; despite this, he showed no interest in her personal life or background when doing so. Sateriasis maintained a false relationship with Lukana once she was in his harem, receiving her bracelet as a gift, and trusted her in helping to manage the other women.

Maylis Beelzenia: A woman in Venomania's harem. The duke became fascinated with Maylis' portrait, finding her to be very beautiful, and resolved to seduce her into his harem. He maintained a false relationship with her while she was in his harem.

Lilien Turner: A woman in Venomania's harem. The duke became attracted to Lilien and preferred spending time with her during his time in Mystica, seducing her more subtley over several days. Venomania was disappointed at ultimately having to use the power of Lust on Lilien, having believed that this time it wouldn't be necessary. After she was in his harem he maintained his false relationship with her.

Rajih: A rival for Lilien's affections. The duke thought little of Rajih initially, intending to kill him in his demon form and not understanding the relationship that he had with his newest victim. Rajih's convictions and love for Lilien reminded him of his own past love for Gumina.

Mikulia Greeonio: A woman in Venomania's harem. The duke seduced Mikulia due to her beauty and maintained a false relationship with her in his harem, giving her gifts and treating her with more kindness than her own parents. She was among his chosen "favorites" in his harem.

Kachess Crim: Venomania's murderer. The duke met Kachess while the latter was disguised as a woman and welcomed "her" to his harem, finding "her" to be very beautiful. When Kachess stabbed the duke and revealed himself, Venomania was deeply shocked.

Sateriasis Venomania: Venomania's younger brother. Sateriasis was once Cherubim's only friend and the two would often play together, becoming very close. Eventually, however, Cherubim became jealous of Sateriasis' handsome face and popularity, envying his brother's engagement to Gumina. After Gumina rejected him, Cheribum's jealousy cemented into hate and prompted him to murder his brother.

Hakua Netsuma: A woman in Venomania's harem. Venomania found Hakua and seduced her due to her similarity to I.R.'s medium, and he maintained a false relationship with her while in his harem.

Lolan Eve: A woman in Venomania's harem. Venomania became fascinated with tales of Lolan's beauty and "healthy dark skin," using the power of Lust to seduce her against her true sexuality. Although indulging in a false relationship with her, he was unaffected by her resulting mental strain and later death.

Conceptualization and Origin

 * Sateriasis' name is derived from satyriasis, meaning "a morbid or excessive desire for women"; the term comes from the Satyrs, hedonist creatures featuring goat-like traits, tying with the Duke's demon form.
 * His last name is a combination of the words venom and nymphomania, meaning "an excessive desire for men", referring to his power over the women he enchanted.
 * His original name, Cherubim, is the plural form of Cherub, a hierarchy of angels in Judeo-Christian teachings, often depicted with multiple faces; its plurality likely refers to Cherubim's deformity.
 * The Cherubim are sometimes mistaken for Putti, small, winged male children representing passion and, in some cases, the god Cupid in Greek mythology.
 * Gumina's nickname for him, Sati, is possibly derived from the Indian ritual Sati, where a widowed woman throws herself on her husband's funeral pyre.
 * The Duke and his capabilities may be partially inspired by the incubus, a demon in male form that sexually defiles women in their sleep, with continued intercourse with the incubus sometimes leading to death.

Curiosities

 * It is unknown if Asmodean's independence is directly connected to Venomania's assassination or he is recognized as a hero after the nation achieved its own soverignty.
 * He is, ironically, succeeded by his descendant, Banica Conchita, who causes the second major incident concerning the Seven Deadly Sins and kills a descendant of Kachess Crim, Venomania's killer.

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