When her husband, who is much older than her, dies, Hyo-jeong, a young mother who ends up living with her one-year-older stepdaughter, Joo-ah, decides to find a male helper. Each one of them ...

Joo Seung-gi and Yoo Ah-rin desperately have sex several times a day to have children, but they were not pregnant, so they were tested, and the result of the test was Seung-gi's infertility. ...