The memory of her boyfriend, Baekhyun from a few years ago has disappeared. When Baekhyun meets her again, he finds out that she has gotten into a memory loss, but still approaches her knowingly. Baekhyun pretends to be a friend, not to shake her memory. But fortunately, she has fallen for him again.

Suzy will be living in a huge house with some of the popular boys from their School and she was glad because she will be living with her crush, Chanyeol. But unfortunately, Kris, the cold guy from the group, is always rude to her and makes her pissed off all the time. While Luhan, the cute but flirty guy, is so childish and wants to play around with her. And meanwhile, Chen is like a father in the house and wants peace in his life. But wait, there's more.. The other popular boys are nice and wants to be friends with her. But she finds it troublesome because she is now getting death glares from their fangirls in School. How will she deal with them? Is it luck or is it not?