Jinyoung confess but got rejected by his crush. why? Because his crush already in relarionship. After he make that mistake he try to move on abd running away but there something happen to hiscrush heart. Jinyoung also got into accident. 

Mark was in realationship with Jackson but after he got confession his heart feeel so different. what happen acutally? he also don't know until Jinyoung got into accident and he got the answer.