A story about a pair of siblings that had an unrevealed secret in their life. Taehyung (V) as a brother of In Hye's (Sae Ron) and they lived together in their heirloom house. A friend of In Hye's, Soo Hyun (AKMU) fell in love with Taehyung and In Hye was helping her in the first place. But because of their unrevealed secret, it makes their situation more complicated. By the way, what is their biggest secret that their family kept till made the complicated situation?!!!

  Hye Mi was a girl who came from a rich family.  However,  unfortunately her family was bankrupted and her parents left her and her little sister alone. One of her father's thug had followed her all the time. One day,  she got rejected by her dream school,  Kirin Art School but one of her friend was accepted by that school. Because of that,  she was too desperated to get a help from that thug who had offer her some income. Then,  two guys were confessed to her.  So,  who will she choose?