Mai and her husband have been married for a while. When she first got married, her husband made love to her every day, but the frequency decreased over time. It has now been three months since she was fucked, and the feeling of discomfort and fear made her do extremely wrong things. Whenever her husband is away, she wears transparent clothes, revealing her underwear. Every time, neighbor Yuzuru couldn't take his eyes off her body. Knowing that her neighbor is careful with her body, combined with the lack of sex, makes Mai forget everything. On the occasion of Yuzuru losing his key and having to wait for a technician to come fix it, Mai welcomed him into the house to make him comfortable. And the fake relationship between the two started from here. Every time her husband went to work, he let Yuzuru fuck her, and the two of them had sex almost every day. The two of them got fatter and fatter, Mai even let Yuzuru fuck her, even though she knew her husband might come back…