Kim Sun was a 17-year-old girl who just wanted to continue her school days peacefully till the day of her graduation. She even moved out of her family's home and got her own place just so she could lessen the burden on her parents, not that they had ever mistreated her. No. She wanted to be able to stand on her own feet, make her own decisions wisely and become more mature every day.

Could she do that once she encounters 7 extremely good-looking boys? Would she still be able to live her high school days in peace? 

...

Maybe not. High school was never meant to be peaceful.