You are in sunny high school. During lunch break, you were sitting at the lunch table by yourself. You were waiting for your best friend Jay Jo.

Unexpectedly, you saw Jay Jo being sent to the nurses office with a nose bleed and bruises on his face. His school uniform was messed up.

Behind you, you heard a loud snickering. You looked back to see Taejin Kim. His knuckles were damped with blood. "What a loser.." he laughed at Jahyeon Jo