List of Minor Characters in the Original Sin Story

This is a list of minor characters that have appeared or are mentioned in passing in the Original Sin Story, including in its songs or other related media.

3rd 'Ma' Test Subject
The test subject chosen for the third Project 'Ma'. Due to her frail body, she had died during treatment and the project was subsequently suspended.

4th 'Ma' Test Subject
The test subject chosen for the fourth Project 'Ma'. At some point during her tenure in the project, she was murdered by Apocalypse and the project was subsequently suspended.

5th 'Ma' Test Subject
The test subject chosen for the fifth Project 'Ma'. After undergoing treatment, she conceived and later birthed a single child. Because she hadn't given birth to twins, she was punished by the project's staff.

6th 'Ma' Test Subject
The test subject chosen for the sixth Project 'Ma' and the wife of Vey Lucif. After being selected and undergoing treatment, she conceived twins. Afterward, she was kidnapped by her husband and was later killed with her unborn children removed from her womb. Her corpse was later discovered in the village of Nemu, with the fetuses missing.

Cain & Abel
Cain and Abel were the stillborn twins of Eve Zvezda. Although successfully conceived in Eve's womb as part of Project 'Ma', the twins died during the birthing process due to miscalculation on the part of Adam Moonlit, Eve's lover. Following their deaths,  the two of them fled to Elphegort. Their deaths traumatized Eve greatly and led to the creation of the Original Sin.

Irta Li
Irta Li was an aristocrat of the Magic Kingdom Levianta and the father of Ly Li. He and his family provided a large amount of funding for the seventh Project 'Ma' and pressured the Senate to allow his daughter to become one of the candidates.

Kiril Clockworker
Kiril Clockworker was a craftsman of the Magic Kingdom Levianta, the fiancé of Elluka Chirclatia, and the older brother of Irina. Born a ghoul child, Kiril became part of the Clockworker family as a craftsman and lived in Lighwatch. Creating many devices, he gained fame as the "Clockworker". At some point, Kiril realized he suffered from Hereditary Evil Raiser Syndrome and began resisting his urges to commit malicious deeds against others.

Sometime during the first decade in the Evillious Calendar, he met the former priestess, Elluka, and the two fell in love. Later on during their romance, Kiril proposed to his beloved and the two became engaged. Afterward, to express his wish for a happy future for them all, he crafted a music box that played the Clockwork Lullaby's melody, which he gave as a gift to his fiancée and little sister.

Once Elluka and Irina were selected as two of the potential candidates for the seventh Project 'Ma' in EC 013, he gave Elluka his support for becoming Ma and the nation's new sovereign. After witnessing Irina kill Elluka, Kiril was devastated and realized that his sister had been consumed by her Hereditary Evil Raiser Syndrome, and lost faith in the outwardly noble intentions of Seth Twiright to use a HER to save the nation.

Around the same time, the music box he crafted broke. Noticing he heard a melody despite the box being broken, Kiril realized it was Elluka's voice. The craftsman then asked his deceased love what to do and she told him to resurrect her with Sin and restore everything. Desperate, Kiril took Elluka's corpse and carried her to the forbidden ark in the temple as the voice instructed.

He then cast the Clockwork Secret Art on the device to reverse its time and make it usable. As his beloved's voice hurried him to place her in the ark, Kiril did so. Immediately after, the Clockwork Secret Art faltered and the device went out of control, causing a massive explosion that destroyed the Magic Kingdom around them. Shortly after, Kiril left the destroyed temple and continued to work in the ruins. Sometime later, while working with dirty black box, a traveler came by and asked what he was making. He answered that it was a music box.

Kiril was a kind man, well regarded by his peers and caring for his family. As a result, he was happy with the apparent peace between him, his sister, and lover and optimistic about his nation's survival; this optimism extended to his view of Irina, believing she was different from other carriers of HER and wouldn't succumb to her darker nature. In addition, although he had the disorder himself, Kiril resisted its malicious tendencies. Following Elluka's death, however, he appeared to develop signs of it. As a Ghoul Child, Kiril believed his kind did not have easy lives. He is represented by the Vocaloid Hiyama Kiyoteru.

Levia-Behemo
Levia-Behemo, known individually as Levia and Behemo, were the twin dragon gods worshiped by the Magic Kingdom Levianta. During the Second Period, Levia was a beautiful woman with transparent skin and hair, acting as the Master of the Hellish Yard, while her younger twin brother, Behemo, had a similar appearance, acting as the Master of the Graveyard. Residing in the Second Period, the twins were friends with Held and the god of creation. At some point, the two became on bad terms with one another.

In the Third Period, they were later changed to have the form of a two-headed dragon by the creation god, dubbed Levia-Behemo. Merged with their hated sibling and given an ugly dragon form, the twin gods began to cause grief upon the world around them, breaking the god of creation's rules. In response, he sealed them in the relic Sin and had them act as temporary gods for the third world's humans. Worshiped from the relic they were trapped in, they became the chief deities of the Magic Kingdom Levianta's pantheon.

Before the establishment of the EC calendar, Maria Moonlit claimed the gods had to be reborn as humans to cleanse Sin in order to prevent their destruction, prompting Project 'Ma'. After Kiril Clockworker used Sin to resurrect his beloved, Elluka Chirclatia, in EC 013, the twin gods were freed from their prison and achieved partial resurrection. Appearing in the sky above the kingdom, the twin-headed dragon immediately destroyed Levianta with a massive explosion.

Shortly after, the twin gods' incompletely resurrected form collapsed. While the main portions of the dragon gods dwelled within Elluka as an indescribable mass, fragments of their being descended from the red sky into Held's Forest. Fusing with the bodies of Hänsel and Gretel, the gods' fragments transformed them into imperfect copies of the twin gods. They were later worshiped individually in two separate sects of Levin. They are likely based off of the Leviathan and Behemoth.

Maria Moonlit
Maria Moonlit, also known as Prophet Marry-Go-Round, was a queen of Levianta and the mother of Adam Moonlit. Before the establishment of the Evillious Calendar, Maria prophesied that the nation's dark legacy, Sin, would destroy the country. To counteract this, the great prophet claimed that the twin gods needed to be born in order to cleanse the ark. At some point, Seth Twiright and the Leviantan Senate took Maria away from her son and set up Project 'Ma' to help prevent the Magic Kingdom's destruction.

Following the births of Hänsel and Gretel, the Prophet commemorated the event by establishing the Evillious Calendar, beginning with EC 0. Prophet Marry-Go-Round was proficient in magic. Among her magical abilities included the powerful Swap technique, allowing her to transfer a nearby soul, including her own, to another nearby body or object at will.

Raisa Netsuma
Raisa Netsuma, also known as The White Demon of Jakoku, was a member of Apocalypse. She is a forerunner of the Netsuma Clan and the ancestor of Hakua, Haru Netsuma, and Clarith. She is represented by the Vocaloid derivative Yowane Haku.

Vey Lucif
Vey Lucif was the husband of the sixth test subject for Project 'Ma'. While his wife was receiving treatment for the project, Vey abducted her while she was pregnant with the twin fetuses. She was later killed and her babies extracted from her womb.

Yegor Asayev
Yegor Asayev, also known as The Black Baron, was a member of Apocalypse. He is the ancestor of Mikhail Asayev, who would help found Neo Apocalypse.