An erotic film about having sex with an aunt's friend

Seung-jae, a house owner in his 30s, lives with his nephew Joon-hyeok, but has a hard time doing the chores and so hires a maid. Se-kyeong is an innocent girl who doesn't know much about sex, but ...

A young man grows up with his older cousin who is like an older sister to him. When he grows up, he goes to visit her at her home where her friend is also visiting. The three of them under roof ...