Keitaro Urashima, burdened by a childhood promise to attend Tokyo University with a girl, faces academic struggles that threaten his future.
Seeking refuge and a study environment, he heads to his grandmother's old hotel, only to discover it's now a dorm filled exclusively with young women.
Through a series of unexpected events, Keitaro finds himself thrust into the unlikely role of dorm manager, beginning an unusual and comedic living situation with the five female residents.
The anime focuses on Keitaro's attempts to manage the dorm, prepare for his university entrance exams, and navigate the complexities of living with a group of spirited and often chaotic girls.