Kim Jonghyun and Shin Saerom have been best friends ever since he became her next door neighbor eleven years ago. Unlike most best friends, these two have a love-hate relationship involving teasing, bickering, skinship, and fluff. Saerom begins develop a crush on Jonghyun secretly and the feeling is mutual, but both of you do not want to risk the breaking the current relationship as best friends. The two's relationship