Byun Baekhyun, a 17 years old boy who had been living in fear for the past 13 years met a girl at his new school, Choi Sera who's a gangster and well-known in that school. The incident that haunted him for the past 13 years made him afraid of woman, avoid them whenever he saw them and even hurted them if he needed to do so. Choi Sera decided to pick on him for fun when he entered that school. However, Baekhyun never had the thought that Choi Sera would become the first girl ever that he can talk to. He believed that Choi Sera have something special in herself, so he wants her to heal him.

But then, Baekhyun realized that it is not that easy to make Sera heals him willingly.

"I know you are special in some way, I believe that you can heal me. That's why, I need you." 

"Stop talking nonsense. I hate coward like you, so get lost!"