Her Secret Lesson (2020)
Jincheol and Hyejeong are lovers. However, both of them are bad at sex and are disappointed in each other. Hye-jeong says goodbye to Jin-cheol. Jin-cheol recommends that her friend Kyung-soo be taught that there is a god of sex. Yoon-il, the god of sex, accepts Jin-cheol and gives him great training