In SM Town, everyone treats each other as sisters and brothers. There are usually rules about the relationship between them. Kim Hyoyeon and Lee Hyukjae a.k.a Eunhyuk are bestfriend. But the Girls' Generation main dancer had a little secret that she didn't want to tell anyone. When Eunhyuk was getting ready to join in the army, Hyoyeon decided to write a letter in oder to tell him the truth about her. Will he

Junior, a famous and sucessful boyband with 3 members. Donghae-the romantic leader with a beautiful voice, Eunhyuk-the handsome drumer and Kyuhyun-the cute maknae with awsome talents. Their manager has just been fired. They need a new one. The CEO made a big surprise for them. What could it be?  

They want to erase all feelings for each other   She goes to Japan   He goes to Taiwan   But unexpected twist happens   Destiny makes them reunion even just a moment   Then they back to their own reality life   But they can’t lie to their own true feeling  

He’s the dancing king.   She’s the dancing queen.   Both of them are famous.   All people adore them.   What a perfect couple on the dance floor.   They’ve a perfect chemistry when dancing.   But nobody knows their chemistry out of the dance floor.   It just their little secret…

Hyoyeon is an ordinary member of the Dance Society of SM University. One day, she was challenged for the crown: Dancing Queen. She doesn't know that someone is mesmerized or in love in the way she dance. What would be her reaction to this?