Oh Sehun is the youngest from four siblings. After their mother past away one year ago, their father fired from his work because of the stress, tension and the other. Start from that, their father always beat them without any reasons. One day, they decided to leave their father. But the other three Sehun's siblings wanted to leave him with Luhan, their friend.  Luhan very take care of Sehun like he care his own brother. However, Luhan felt sick and Sehun have to help him.