Buddy's Mom (2015)

20-year-old Kyeong-soo is a man who's learned about sex from the Internet but knows nothing about the real thing. He's only had crushes and he has never even been kissed before. When he confessed his feelings to Ji-yeon, his crush, he felt shame. One day, he has a fight with his father and remembers his friend Baek-hyeon had invited him over to Gangwon-do. There, he falls in love with someone unexpected.