Mizuki is a senior student, she is in love with a mature man with a stable job. Her boyfriend suggested moving in together because they are both about to graduate, and Mizuki quickly agreed. Living with a different man made her feel like a confused schoolgirl, it was like the life of a newlywed couple, besides doing household chores, she had to serve her man in every way like a maid. Especially in terms of sex, the frequency of lovemaking has increased significantly compared to before and is often uncontrollable. Whenever he feels like it, her boyfriend takes her to satisfy his needs in every corner of the house.