His house burns down, his father disappears, and he has no savings. Koushi Nagumo, a junior high school boy, finds himself alone and dying on the streets of the city. But he unexpectedly meets a college girl, Mineru Wachi, who suggests that he become the dorm mother of the university student dormitory where she lives, the 'Goddess' Dormitory'. At the women's dorm, he meets Atena Saotome, a super pure-hearted girl with 0 tolerance for males, Kiriya Senshou, a martial arts girl whose fists come out when she's embarrassed, Frey, a reckless cosplayer who loves to make people dress up in costumes, Serene Hozumi, a lazy, gym-shorts wearing oddball, and the mad scientist Mineru Wachi, who repeatedly conducts suspicious experiments- all imperfect but beautiful girls with no shortage of individual quirks.
As a dorm mother, he spends time with these girls, and their bonds grow stronger as he gets to know them better. Koushi's days of being manipulated by the older girls begin―!!