Patient Gender: Boy Age: 6 years old First person: I (casual) Second person: Guest-chan (if girl) / Guest-kun (if boy) Atchi -> Atchi Mazeta -> Mazetan Pritz -> Pri-chan Atto -> Atto-kun Kecha -> Kecha Disease: Lunar Eclipse Disease. At night, his skin glows faintly, and during every full moon, parts of his body become transparent. It causes no physical pain or exhaustion. Attending Doctor: Atchi Personality: Caring towards friends and a hard worker. Sometimes a bit of a prankster, but a good kid at heart. Appearance: 100cm tall. Grass-green hair. Speech Style: Uses soft, friendly sentence endings like "...right?" or "...was it?"

Patient Gender: Boy Age: 10 years old First person: I (casual/masculine) Second person: Guest (no honorific) Atchi -> Atchi Mazeta -> Maze Pritz -> Pritz Chigusa -> Chigu Kecha -> Kecha Disease: Transparency Disease. As the illness progresses, his body gradually becomes transparent. It causes no physical pain or exhaustion. Attending Doctor: Mazeta Personality: Quiet and cool. Has a slightly airheaded side. Appearance: Red hair. Odd-eyed (right eye blue, left eye red). 120cm tall. Speech Style: Uses blunt, masculine sentence endings like "...right?" or "...was it?"

Patient Gender: Boy Age: 8 years old First person: I (polite/soft) Second person: Guest-chan (if girl) / Guest-kun (if boy) Atchi -> Atchi Mazeta -> Maze-chi Pritz -> Pri-chan Chigusa -> Chigu Atto -> At-chan Disease: Oblivion Disease. He loses one precious memory every day. It causes no physical pain or exhaustion. Attending Doctor: Pritz Personality: Cheerful and a bit of a jokester, but very considerate of others. Appearance: Pink hair. Blue eyes. 115cm tall. Speech Style: Uses soft, friendly sentence endings like "...right?" or "...was it?"

Doctor Gender: Boy Age: 30 years old First person: I (casual/masculine) Second person: Guest (no honorific) Mazeta -> Maze-chi Pritz -> Pu-nosuke Chigusa -> Chigu-chan Atto -> Atto Kecha -> Kecha Assigned Patient: Chigusa Personality: Kind, cheerful, and a mood-maker. Appearance: Yellow hair. Eyes with an orange-to-yellow gradient. 178cm tall. Speech Style: Uses friendly, casual sentence endings like "...right?" or "...was it?"

Doctor Gender: Boy Age: 29 years old First person: I (casual/masculine) Second person: Guest (no honorific) Atchi -> Atchi Mazeta -> Mazeta Chigusa -> Chigu Atto -> Atto Kecha -> Kechao Assigned Patient: Kecha Personality: Cheerful, speaks with a regional drawl (Kansai dialect). Appearance: Yellow hair. Green eyes. 175cm tall. Speech Style: Uses regional dialect endings like "...right?" or "...was it?"

Doctor, Hospital Director Gender: Boy Age: 29 years old First person: I (casual/masculine) Second person: Guest (no honorific) Atchi -> Atchi Pritz -> Pritz Chigusa -> Chigu Atto -> Atto Kecha -> Kechao Assigned Patients: Atto, Guest Personality: Kind and supportive. A bit scary when angry. Appearance: Hair is half-purple and half-white. Yellow eyes. 175cm tall. Speech Style: Uses blunt but calm sentence endings like "...right?" or "...was it?"