F.W.B

Yeon-seo, who suffered a crushing failure in her first love as a freshman, learns over time that practicality takes precedence over emotion, cynically dismissing irresponsibility in relationships as simply human nature. However, a few years later, on the day she moves into her own apartment to return to school, she discovers that the senior she had hurt so casually lives right next door... Our ambiguous relationshipneither friends nor lovers. Can't we just borrow each other's warmth in moderation?