Yang Sohee and Kim Joonmyun have been best friends since kindergarten. Something about Sohee always screamed vulnerable, it was like it was written in capital letters on her forehead. She always attracted bullies, got made fun of, has been called horrible name, has been pushed into the mug a few time and always got her lunch stolen. Until her knight in shining armor came along and protected her from everyone.

Ever since then, they were inseparable.

Joonmyun comes from a rich family whereas Sohee comes from a middle class family that barely has enough to get by. However, he never looked down upon her status and was always there for her no matter what. This is why Sohee fell in love with him, because of his caring personality.

He was her angel.

They went through elementary school and junior high together. Now high school comes along and they both attend a prestigious school full of rich people and those who are able to afford it while Sohee is there on scholarship. They promised each other that no matter what nothing will come in the way of their friendship.

It was almost the end of sophomore year and summer was approaching quickly. Joonmyun was brainwashed and completely breaks up their friendship.

Now it's their last year. What happens when he wants to make up? Will Sohee take her ex-best friend and ex-lover back? Or will she just toss him away like her did to her?