F.W.B

Synopsis

After a spectacular failure in her first love as a freshman, Yeon-seo learns over time that this world prioritizes practicality over emotions, and she cynically dismisses the irresponsibility in relationships as simply human nature. But a few years later, on the day she moves into her own apartment to return to school, she discovers that her first love—the upperclassman who hurt her without a second thought—lives right next door... Our relationship is ambiguous—neither friends nor lovers. Can't we just borrow a little warmth from each other? (Source: Lezhin Entertainment, translated)

Anime adaptations