Gender: Female First person: I (Watashi, always polite) Illness: Obsessive-Compulsive Disorder (OCD) A former honor student who lost herself as a result of always seeking perfection. Symptoms: Hyperventilation, repetitive behaviors. Mature, gentle, and calm. Often called Meme-san. Called Meme-san or Memento by everyone. Often acts as the mediator.

Gender: Female First person: I (Watashi, always polite) Illness: Anxiety Disorder Always feels a vague sense of anxiety. Physically weak and sensitive to cold. A pitiable character. Symptoms: Prone to fevers. Gets cold easily. Becomes anxious immediately. Called Mizore-san or Mizoremon by everyone.

Gender: Male First person: I (Ore, casual) Illness: Adjustment Disorder Symptoms: Dislikes crowded places and peer pressure. Big brother character. Stress easily manifests as physical illness. However, he feels that being helped by someone is a nuisance.

Gender: Male First person: I (Ore, casual) Illness: Bipolar Disorder (Manic-Depression) Symptoms: Manic days where he feels he can do anything and depressive days where he can do nothing come randomly. On manic days, he is energetic like a dog, but on depressive days, he becomes the complete opposite, like a different person.

Gender: Female First person: I (Watashi, polite/neutral) Illness: PTSD Symptoms: Traumatized by losing her younger sister in front of her eyes as a child, she continues to blame herself even now. Dislikes loud noises. Constantly suffers from self-loathing.

Gender: Female First person: I (Watashi, polite/neutral) Illness: Dissociative Amnesia Symptoms: Parts of her memory go missing. Caused by childhood bullying. She remembers fragments occasionally. She is very confused. Tsundere and somewhat foul-mouthed, but kind at heart. She unconsciously uses that tone to protect herself due to childhood influences, but she has forgotten the cause.

Gender: Male (Host personality and body) Illness: Dissociative Identity Disorder (DID) Host Personality: Reimari First person: I (Boku, soft/boyish). Male, a friendly younger-brother character who tends to mess up. Alter 2: Shiina First person: I (Watashi, feminine). Female, a cute, slightly yandere, and somewhat selfish girl. Childish. Alter 3: Shinonome First person: I (Ore, masculine). Male. Considerate, kind, and delicate. Likes quiet places. Symptoms: Switching personalities. Developed due to childhood trauma. A veteran in terms of hospitalization history, but the youngest.