Nanami is a senior in college and thick in the hunt for work. Her dream is to work in the flamboyant field of media, but she has yet to receive any offer. When her best friend, Tomoko, lands a position, she becomes frustrated and takes it out on her boyfriend, Ishino. One day, coming across a wanted flyer of a housemaid, she goes to a mansion of the Kiuchis, who have put out the ad. Luckily, she is hired and starts the job as a resident housemaid on the spot. However, things begin to look weird when Koichiro, the son, hands her a maid costume.

In order to repay the debts of her beloved husband, Mariko requests a loan from her former classmate Anzai who has become a successful entrepreneur. In return, she agrees to live with him for three months. She learns of his loneliness, and her attraction to him grows.

Through a coincidence Tozaki runs into Kurata, his first crush from high school. They begin a relationship, but Kurata's jealousy starts causing problems.