One theory is that Sabao is a dull middle-aged man who works at a factory that smells like scent, which is rumored to be making parts for military equipment. I have no friends, and of course no lover. My only reason to live is my sister, Miku, who waits for him to come home every day. A gentle and cute, perfect sister, Miku. Sabao feels great happiness in living with her. However, the feelings for Miku, who was growing at the same time as happiness, were never forgiven by his brother and sister.

Miku, Boku dake no Imouto

Erotic actress and hot love begins!  Il Bong, a newcomer who tries to become an actress, is misunderstood as a pervert by an actress at her first filming studio and becomes unemployed again. While being discouraged by the fact that the first erotic actor can't learn from anyone, he leaves for Japan to get a chance to meet AV actress Reina. With the help of his senior Sang-gu, he meets Yoshida, a legend in the Japanese AV world, and now disappears. Ilbong passes through the role of a soup actor and finally gets lucky to be selected as Reina's opponent. Reina, who has more than one emotion, wants to know Ilbong's inner mind ... Ilbong's love and challenge to grow as an AV male actor begins.