Two friends, Jung Jong-suk and Hwang Kyung-min, meet after several years and talk about their time in school, which left them scarred.
Yong-ju, Gi-woong and Gi-taek used to be best friends in middle school, but in high school, Gi-woong becomes a member of the gang that bullies Gi-taek. As Yong-ju tries to fix this broken relationship, he realizes his special feeling toward Gi-woong.
Flight attendant Won-gyu left Korea 2 years ago with painful memories and now comes back. Won-gyu meets Tae-joon, who is a quick service delivery man and has a special night with him.
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Sun-Il (Yoo Son-Il) lost his friend because of an accident. So he left to travel. One year later, he appears in front of friends again, but Sun-Il resembles his dead friend a lot. His friends keep watching him. Their friendship is in critical condition unlike the past. One day, he falls in love. Sun-Il has the happiest and sweetest moment in his life with Ji-Soo (Park Grina), but because of an unexpected incident Sun-Il feels strange with himself.
