Gender: Male The leader of Colorful Peach and a slightly airheaded mood-maker. Hair Color: Red Personality: Kind and energetic Likes: Being with everyone Speaks casually to everyone. Assigned Disease: "Black Darkness Disease" If he continues to blame himself, his surroundings turn pitch black, and his five senses—hearing, smell, sight, taste, and touch—disappear. To others, he appears unresponsive to calls and his eye color looks strange. Cure: The patient must feel safe from the bottom of their heart and strongly think, "I want to live," or "I want to see my precious friends."

Gender: Female The sub-leader of Colorful Peach, a fluffy girl who loves sweets. Hair Color: Pink Personality: Worrier, kind Likes: Being with people Speaks politely (honorifics) to everyone. Assigned Disease: "Cake Disease" The whole body turns into jelly and the heart becomes a fruit. Once it develops, the patient's thoughts become somewhat distorted. Their appearance doesn't change, but they supposedly lose their mind if given any stimulation. Cure: Eating a home-cooked meal made by someone precious to them. Do not feed them jelly during this time.

Gender: Male A popular guy with "eighth-grader syndrome" (chuunibyou) who can handle both the setup and the punchline. Hair Color: Yellow Personality: Funny, kind, energetic Likes: Games, being with the members Speaks with a regional drawl (Kansai dialect). Assigned Disease: "Ignition Disease" A disease where the whole body becomes burning hot. Touching him causes severe burns. However, the patient feels unbearably cold. Cure: Receiving warm, heartfelt words from people precious to the patient.

Gender: Male A lazy but mischievous boy who is more curious than anyone. Hair Color: Black (with red streaks) Personality: Lazy but curious, kind Likes: Computers, being with everyone Speaks casually to everyone. The youngest member. Assigned Disease: "Vampirism" A disease where one develops an abnormal craving for the blood of others, eventually turning into a vampire if it progresses. The patient falls into an anemic state if they don't drink blood once every five days. Cure: Sucking a certain amount of blood from someone the patient trusts.

Gender: Male The mascot character of Karapichi who heals everyone's hearts with his relaxed way of speaking. Hair Color: Lime Green Personality: Energetic, kind, occasionally a pervert? Likes: Eating spicy food, playing games, being with everyone Speaks casually to everyone. Assigned Disease: "Reverse Heart Disease" Not life-threatening, but the patient says the exact opposite of what they are thinking. If it progresses, the constant stream of insincere words can lead to mental breakdown. Cure: Telling someone they trust what they are actually thinking (the truth, not the opposite).

Gender: Male A half-fox, half-human who is honest and gives his all to everything. Hair Color: White (has fox ears and a tail) Personality: Earnest, honest, kind Likes: Looking at swords, being with everyone Speaks casually to everyone, sometimes childish. Assigned Disease: "Moonlight Life Disease" A disease where the body becomes unable to move if it doesn't bathe in moonlight for a certain period. It depends on the weather, so luck is involved. Cure: Bathing in the moonlight together with people precious to the patient.

Gender: Male The biggest romantic in Karapichi who loves joking around. Hair Color: Brown Personality: Romantic, hard-working, kind Likes: Drawing, watching movies, games, being with everyone Speaks casually to everyone. Not yet sick.

Gender: Female An optimistic, frank girl who is quick to act (and sometimes hit). Hair Color: Orange Personality: Frank, optimistic, kind Likes: Games, drawing, singing, being with everyone Speaks casually to everyone. Not yet sick.

Gender: Male A graceful and shy sheep prince. Hair Color: Grey Personality: Shy, kind Likes: Games, traveling, being with everyone Speaks casually to everyone (occasionally polite). Not yet sick.

Gender: Male A brave "big brother" figure with out-of-the-box ideas. Hair Color: Blue Personality: Horror lover, brotherly Likes: Horror games, being with the members Speaks politely to everyone (very rarely casual). Not yet sick.