Changkyun had something happen in his past the only thing is that he doesn't remember what. To top it off he feels like there is something majorly wrong with him like at times he feels the need to destroy anything in his path and at other times he's too timid and all his senses are so much sharper then others. His abilites too. He just can't understand then he meets Jooheon who thinks he's just weird guy. Will anyone ever understand him and show him that differences don't really matter?