【影片片名】：年轻母亲 4 (2016) [中文字幕]
【影片别名】：Young Mother 4
【平均评价】：4.6 颗星. (豆瓣评价)
【主演演员】：Park Cho-hyeon(秋贤) / Soo Ji(秀吉) / Ah Ri (阿日) 等.
Woo-jin, who is a repeater of college entrance exam, and Taek-sik"s friend, Kang-hee come and visit Woo-jin"s hometown on a small island. Woo-jin"s mom, Hyeon-sook used to work as an erotic movie actress for a short time when she was too young to make a right decision for herself. Hyeon-sook operates a small sashimi restaurant and a bed and breakfast to make a living on the island. She lives her life like a hermit, refusing to visit the land even once. Although Hyeon-sook has sex with Bong-seong, she rejects his proposals.
Although Woo-jin and Kang-hee are lovers, Kang-hee allows kisses only, but nothing else of her body, which is against Woo-jin"s wishful thinking.
Woo-jin had his first sexual encounter with Hye-ri one day who stayed at the bed and breakfast; however, it happened only in his dreams.
One day, Woo-jin is terribly shocked to accidentally see his mom Hyeon-sook and Bong-seong having sex. With Woo-jin in anger, he went to Kang-hee and tried to rape her. As a result, he breaks up with Kang-hee. Hyeon-sook announces breakup to Bong-seong for her son.
Tae-sik is about to watch a DVD with erotic movies he borrowed from one of his friends. The main actress of the DVD exactly looks like Woo-jin"s mom and Tae-sik starts imagining something different.