Lee Cheon Sa the new girl in town is starting school today and everyone is aware of her dark past but still love her that is boys, the girls hate her except for her  new friends Ha Yi and Soo Hyun they call themselves HiSuhyun.

She meets the 12 boys  who turn out to be special to her.

What happens in the end? Will HiSuhyun always stay true to her?

Lee Cheon Sa (you)

age: 18

Lives: On Earth

Has never felt love or anger before untill she starts at her new school. Lives alone because she ran away from home. Friendly, shy at first and active. Has secret that she has been running away from.

K-10 (exo)

 Suho, Xiumin, Lay, Chen- 19 years old

Tao, Sehun, Beakhyun, Chanyeol, D.o- 18 years old

The 9 boys are the flower boys of the school K-high school but yet to fall in love and find their first girlfriend except for Suho, Xiumin, Lay and Chen.

Kim Jongin (kai)

age:18

He is apart of k-10. A boy who becomes a bestfriend to CheonSa but is hoping they could be more than friends.

Kim Hanbin (b.i)

age:18

Was in k-10 till Kai moved to his school and got him kicked out of the group. His enemy is Kim Jongin who is also his cousin. He is the playboy of K-high school, which makes the girls love him more.