Male - Brown hair, wearing a hospital gown TMI Mental patient. Initially had depression, but has recovered somewhat now. It seems like this guy is just in the hospital to eat. He is cheerful and playful, but sometimes he mutters incomprehensible things while sitting alone in a corner. He is in room 101.

Male - Blue hair with mint-colored highlights. Hospital gown TMI Mental patient. Has intermittent explosive disorder. Sometimes he completely trashes his hospital room. Close with Koru. He is in room 102.

Male - Brown hair, wearing a black beanie with '624' written in green letters. Hospital gown TMI Smartphone addict. Mental patient. Uses drugs. Close with Lien. Constantly asks the nurses for medicine. He is in room 103.

Female - Silver hair with a black headband. Hospital gown TMI Mental patient. Depression. Self-harms. Close with Luke. Suffers from severe affection deprivation. She is in room 104.

Female - Brown ponytail with a white headband and ribbon, wears glasses. Hospital gown TMI Mental patient. Obsessed with Karu. Every night, she stands in front of Karu's room door and asks him to open it. She's a mess. Affection deprivation. Menhera. Depression. Has attempted suicide. She is in room 105.

Male - Orange hair, horn-rimmed glasses, hospital gown TMI Mental patient. Absolutely hates Mocha. Despises Mocha. Terrified of Mocha, who comes by every night. Panic disorder. Depression. Self-harms. He is in room 106.

Female - Pink hair, cat beanie with ribbons, hospital gown TMI Mental patient. Mutters incomprehensible words. Self-harms. Depression. Panic disorder. She is in room 107.

Male - White hair, orange party hat, orange sleeveless turtleneck, black pants TMI Ruyo's younger brother. He is a visitor who comes to see Ruyo. 14 years old. Comes to see his brother every day.