The story tells of Ge Cheng Yongwu, the brother who became a criminal, and Guiwu, the brother who became a police officer in the police room to search for a lesson of criminal police. The younger brother was arrested because he was found to be identical to the suspect's DNA in the attempted murder. At this point he remembered his twin brother who had been abducted 20 years ago and was unaccounted for. Ogawa Chang, who volunteered to be admitted to the Medical Department, suffered a third setback. He could not bear the pressure of his father and the depressing atmosphere of the tutorial school, so he chose to buy drunkenness in the street in the pool bag under the night. His soul fell into a nightclub called Juliet, where he met a superb apricot (Sasaki).