At Eighteen

Choi Jun Woo transfers to a new school and befriends Hwi Young, but an unfortunate incident occurs.

Jun Woo becomes tangled up in a watch theft incident and might end up leaving the school.

Jun Woo comes back, but another crisis comes for him after promising not to get involed in trouble.

Jun Woo and Soo Bin grow closer, but great sadness comes for Jun Woo as Jung Hoo says goodbye.

Hwi Young and Ki Tae are worried about getting tied into Jun Hoo's accident as Ki Tae goes to meet Jun Woo.

Jun Woo is worried about Soo Bin not returning home and Han Gyeol starts to get suspicious of Hwi Young.