A scar is not only a blessure in the body.It could be also a memory.A tragic memory that hides lots of pain behind it.It may transform into a psychological problem that will follow you whenever you go till your last breathe. That's the story of baekhyun the leader of D4(a highschool group of 4 bad boys named"4 demonds" :baekhyun-kai-sehun-chanyeol). Baekhyun is known as a bad boy,a player but he has a pure tender heart.He suffered from lots of pain during his childhood th