At Eighteen: Season 1, Episode 1
Choi Jun Woo is a new transfer student at Cheon Bong High School. He has no interest in school life, because of some trauma he experienced at his previous school. On Jun Woo’s first day at school, the class president, Hwi Young, greets Jun Woo like a gentleman. However, things take a turn for the worse when Jun Woo becomes involved in an unfortunate incident.