Ever since Kwon Yuri was born, she didn't have the normal life as any other kids her age so she only stay by herself and make her own imaginary friends which made people called her crazy and retard by the way she acts until she meets Xi Luhan, a guy Mrs. and Mr. Kwon are indebted to. In order to pay Luhan back for all the help he has done for the Kwon family, Mrs. and Mr. Kwon decided to give him their