“Manager-san, please take care of me from today!” Hirose Sota is suddenly assigned to be the janitor of a women’s dormitory. The residents of the dormitory are girls of all ages and backgrounds, including a female student who hates men, a working adult who looks like a little girl, and an older lady with a great style. Sota is anxious about whether he can fit in, but… “Hiyori wont you to stay next to me until I fell asleep, I-Is it no good?” When the time comes to take on the role of manager, one of the residents, a high school girl named Shinohara Hiyori, takes a liking to him and becomes very spoiled. As Sota sincerely confronts Hiyori about her problems, the other girls start to open up to him. And one of them turns out to be the girl that Sota promised to marry when he was a child! The girls’ dormitory daily loves comedy begins!