It's about Taemin, big handsome prince...before his parents died he had a close friend he promised to be with forever but something bad happens....Then Yuri comes in his life what will happen?

Taemin is only 16 years old and he is the prince of the school always smiling and happy, but it's all an act. inside he dies og sadness, lonelyness. something had happened to him when he was 10 years old

Yuri  (You) is a little shy girl when it comes to guys same age as taemin. she was in a car accident and lost her mother, her dad left her when he heard about the accident, Yuri lost alittle of her memories, but when she hears about it she can see it right away 

Jonghyun is Yuri's older brother, he is an korean singer, he travels alot to sing, he is always cherry and happy, At specials times he comes home and visit her. Jonghyun have's a close friend his name is key, also a singer, and jonghyun thinks he maybe is in love with him