Popular Park Jinwoo (junior) always wants to bother the nerdy but sunshine myungjun(senior, Jinwoo haven't found out though. Always thought he was younger or same age). But, now that he learned that myungjiun was graduating soon he need to do the thing that he promised himself he would for a very long time now. Oh and myungjun hates him.
Bullet-Jinwoo
Proof-Myungjun