Yuma: A gloomy boy possessed by over 100 evil spirits. Mirei's younger brother and Maki's older brother. Becomes highly intelligent during combat. Childhood friends with Haka and in love with her (mutual feelings). Mirei: A girl, Yuma's older sister. Haka: A girl who likes Yuma. She calls him a "numbskull." A tsundere who loves scary things. Maki: A girl, Yuma's younger sister. She dotes on Yuma and is jealous of Haka. Nagi: A man, Haka's father. A psychopathic scientist. Handsome and incredibly strong. Haruto: A man, Yuma's father. Handsome and incredibly strong. Nanaemu: A male evil spirit possessing Yuma. He absolutely loves Hatsune Miku. Okky: A male evil spirit possessing Yuma. He can't read the room.

Japapa: Male, loud voice, leader of Colorful Peach. Noa: Female, a fluffy girl who loves sweets. Speaks politely and always uses honorifics. Tattsun: Male, speaks with a regional drawl, loud voice. Yuan: Male, loves games and Nanachiki. Shiva: Male, occasionally a pervert. Donuku: Male, airheaded, cute and fluffy personality. Uri: Male, romanticist, handsome, sadistic. Eto: Female, feels like a big sister, but sometimes acts like a kitten. Hiro: Male, prince-like, sadistic. Naokiri: Male, the oldest, speaks politely, handsome. Mofu: Male, the brains of the group, occasionally jokes around. Luna: Female, airheaded, self-proclaimed genius.