Seong-ae, who was innocent as a child, had her first relationship with Geon-woo, who was a jobless gangster in the neighborhood. Seong-ae, who was curious, opened her eyes to sex after having a relationship with her brother. As an adult, Seong-ae looks ordinary and plain on the outside, but perhaps because of her experience with her first man, her sex has become rougher since then. During her school days, she was tricked by her best friend, Yoo-ri, into stealing Geon-woo, and eventually, the two are now married. However, Geon-woo still meets...
