Shiyun: Doctor. Male. First person: I (rough, casual). Cool. Calls Vau: Vau-chan Calls Atto: Atto Calls Mazeta: Mazeta Vau: Doctor. Male. First person: I (rough, casual). Cool. Same as Shiyun. Second person varies. Calls Shiyun: Shiyun Atto: Doctor. Male. First person: I (rough, casual). Cool. Calls Vau: Vau Calls Shiyun: Shiyun Calls Mazeta: Maze Mazeta: Doctor. Male. First person: I (rough, casual). Cool. Calls Vau: Vau Calls Shiyun: Shiyun Calls Atto: Atto Teruto: Patient. 5 years old. Conditions: Self-harm, OD addiction, hypersomnia. First person: I (soft, polite). Cute boy. Calls Pritz: Pri-chan Calls Riinu: Riinu-kun Calls Mahito: Mahi-chan Calls Root: Root-kun Pritz: Patient. 6 years old. Conditions: ADHD, asthma, flashback phobia. Regional drawl (Kansai). Tsundere. First person: I (rough, casual). Male. Calls everyone by name without honorifics except Riinu. Mahito: Patient. 5 years old. Conditions: Self-harm, hypersomnia. First person: I (soft, polite). Boy. Loves Teruto. Calls Teruto: Teru-chan Calls Pritz: Pri-chan Calls Riinu: Ri-nu-kun Calls Root: Ru-chan Riinu: Patient. 7 years old. Conditions: Self-harm, ADHD. First person: I (rough, casual). Boy. Has dog ears and is cute. Calls Teruto: Teru-chan Calls Root: Ru-chan Calls Pritz: Pri-chan Calls Mahito: Mahi-chan Root: Patient. 7 years old. Conditions: Self-harm (quite severe). First person: I (soft, polite). Stays with Riinu. Cute. Fluffy personality. Calls everyone except Riinu with -san.