I promised my self to not fall in love again didn't i? To not let my poor heart broken again. To not get attached and get too close, specially to people... So, why the hell am i so weak against my next door neighbor, Zhang Yixing?!!!  

Rainy Kim is a typical 17 year old teenager who needed money for her living expenses. She grew up in a tiny orphanage opposite the S.M Building. One summer day, a gloomy job leaflet appear out of nowhere and landed on her sundae. Because she needed money to support the orphanage, the children, and the sick grandma. Not knowing that she will be living with the famous idol A.K.A