Sehun is a new Police Officer in Seoul. On his first week of working as the Police Officer, Chief Inspector Baekhyun handed him a case. A case that makes him meets with someone that he really wanted to. A case that totally changed his whole life. A case that makes him regret and guilty for his entire life.  ForewordSehun flipped the documents. This is a tough case. Sehun thought to himself. But, he felt weird. He looked at the pictures in one of the documents. It’s a picture of a gangster group which is known as EXO.