Ryeowook lived with his three brothers near the empty house by the forest. No one had lived in that house for years; Ryeowook and his younger brother liked to spend their time exploring all of the various nooks and crannies of the house, much to the dismay of their eldest hyung. Then, one day, someone moves into the house and Ryeowook's life drastically changes. 

Kim Jongwoon was basically being exiled to his family's vacation home. His parents and the doctors said it was for his health, but he knew better. Still, he decided to look at this as a new adventure, something exciting and full of mystery. Little did he know what awaited him there in that old, empty house.