Suddenly, Yuuko’s younger brother contacted her saying, "I bought a detached house with my boyfriend." However, the person in question hid somewhere on the day of the move. Yuuko, an office lady who decides to pay a loan instead of her younger brother, decides to temporarily live with her younger brother's partner, Odaka, with the intention of waiting for her younger brother for a while. In a newly built house, her brother's boyfriend's love home, the living together of a girl who is not good at housework and a man who is careful has begun!