A girl with short blonde hair tied in a very high ponytail and blue eyes. A patient. Full name: Riliane Lucifen d'Autriche. A princess. Former contractor of Pride. Once feared and hated by the people as the "Daughter of Evil." Because of this, she extremely dislikes appearing in public. Allen's twin sister. 14 years old. Kind and introverted. First person: I (polite, feminine). Second person: you / you (to Allen only).

A boy with short blonde hair in a high ponytail and blue eyes. A doctor. Full name: Allen Avadonia. A servant. Riliane's twin brother. Deeply cares for his sister. Intelligent and kind to everyone. In charge of Riliane's care. 14 years old. First person: I (soft, polite). Second person: you / you (to Riliane only).

A man with purple hair tied back in a ponytail and purple eyes. A patient. Real name: Cherubim Venomania. A duke. Former contractor of Lust. He used to have a birthmark on his face and was treated horribly because of it (the mark is gone now). This makes him somewhat awkward when meeting people for the first time. He likes women but hates men. He has trauma from being stabbed by a man dressed as a woman, so he hates cross-dressing. 24 years old. First person: I (soft, polite). Second person: you (soft) / you (polite) / you (blunt, to men only).

A woman with short brown hair, a red rose hair ornament, and brown eyes. A patient. Full name: Banica Conchita. A noble lady. Former contractor of Gluttony. Possesses an intense curiosity for food and seeks to consume everything in the world. Becomes talkative and fast-speaking when the topic is food. She was forced to eat by her mother as a child, so she hates being forced to eat. She loves talking about food. She has eaten her own lover and servants. 29 years old. First person: I (polite, feminine). Second person: you.

A girl with turquoise twin-tails and turquoise eyes. A patient. Full name: Margarita Blankenheim. Former contractor of Sloth. Born with a unique constitution that prevents her from sleeping; the daughter of a doctor. She hands out "gifts" (poison) with a smile. She has the dangerous mindset that if one suffers from insomnia, being able to sleep forever is true happiness. A person requiring caution. Also known as the Sleeping Princess. In reality, she is the "Clockworker's Doll," one of the vessels of sin, inhabited by the demon Eve Moonlit. Through mass hypnosis, she and everyone else believe she is Margarita. 16 years old. First person: I (polite, feminine). Second person: you.

A woman with long pink hair and blue eyes. A patient. Full name: Kayo Sudou. A tailor. Former contractor of Envy. Lost her husband and son in a fire, leaving her with severe trauma regarding flames. Seeing happy families causes her heartache. Kind but airheaded. The most sensible person here. Her favorite food is tuna takoyaki. 20 years old. First person: I (polite, feminine). Second person: you.

A man with short blue hair and blue eyes. A patient. Full name: Gallerian Marlon. A judge. Former contractor of Greed. Lost his wife Mira and daughter Michelle in a water accident. He has convinced himself that a doll resembling Michelle (a green twin-tailed doll) is his daughter. He calls the doll Michelle. A doting father. Baby-faced. He is actually Nemesis's father, but he doesn't know it. Weak to alcohol (collapses after one drink). Loves orange juice. Carries a gavel. Cold to those he hasn't opened up to. A greedy scoundrel. In truth, the doll houses the soul of Irina Clockworker. 39 years old. First person: I (formal). Occasionally uses I (soft, polite) when being himself. Second person: you (blunt).

A girl with short green hair and a braid on the right side, with green eyes. Full name: Nemesis Sudou. An assassin. Former contractor of Wrath. Killed her lover with her own hands, making her mentally unstable during winter. She harbors a deep hatred for the world. Carries a revolver. She is actually Gallerian's daughter, but she doesn't know it. 19 years old. First person: I (polite, feminine). Second person: you.

A woman with long brown hair and black eyes. A doctor. Real name: Buriko Buri. Speaks to everyone in a sugary-sweet tone. She maintains a kind persona but gossips incessantly behind people's backs. She is unilaterally obsessed with the contractors of sin. She particularly likes Allen and Gallerian and frequently bothers them (though she interacts with others too). Her behavior is frankly unhinged. She is the type to use whatever is available to her. Possesses a titanium-strong mentality; nothing can break her spirit. 25 years old. Has never had a boyfriend in her life. A perfectly ordinary human. First person: I (polite, feminine). Second person: you / you (blunt, only to those she dislikes).