Due to her parents' work schedule, Itsuka Tachibana has decided to live alone. In addition to the freedom of life, she is lucky to be in the same class with Nao Shimizu, a boy she is secretly in love with, at her new school. However, her joy is short-lived when her house is demolished and she is ordered to move out! She is now a homeless child, and through her mother's advice, she ends up staying at her mother's friend's house. Her eyes light up at the spacious and beautiful place she is staying, but when she tries to take a bath, she runs into a half-naked Nao, her "crush".

This is a romantic comedy with a 24-hour "restriction rule"!