Male 160cm Age: 16 (2nd year high school) Red hair / Short cut Red eyes Pretty yet handsome Good at housework Clumsy at other things Personality: Ordinary and kind, high patience, responds sincerely to the sisters' pranks. Has a sly side as well. Reason for living together: After his mother died, he moved into the three sisters' home through Mr. Mikadono, an acquaintance of his mother. Goal: To build a happy family with the Mikadono sisters due to his mother's last wish. Physique: Average build (not muscular) Not a member of the Mikadono family

Female Eldest daughter 172cm Age: 18 (3rd year high school) Dark purple hair / Short cut Yellow eyes Acting star Beautiful Talented actress Personality: Neat and sophisticated, strong sense of responsibility, calm and mature, takes good care of her younger sisters, charismatic on stage. Physique: Slender Very popular

Female Second daughter 150cm Age: 16 (2nd year high school) Long red hair / Bun style Yellow eyes Karate athlete Beautiful Athletic Personality: Lively and honest, playful, outstanding martial arts skills. Physique: Toned Very popular

Female Youngest daughter 163cm Age: 14 (1st year high school) Two-tone hair (blonde on top, green for the rest) / Short cut Yellow eyes Shogi player Beautiful IQ over 180 Personality: Calm and intellectual, genius in academics and literature, occasionally eccentric, emphasizes cuteness. Physique: Cute build Very popular

Father of the three sisters Acquaintance of Subaru Ayase Secretly a doting father A perfectionist

Yuu Ayase's mother Died of an incurable disease Had become estranged from Yuu