Namju? Jwodo An Gajyeoyo

A woman named Luna discovers she has been reincarnated into a novel, becoming the childhood friend of a man named Fersen. She finds him annoying and wishes to end their friendship to avoid being targeted by other women who bully her. Despite her efforts, Fersen refuses to stop contacting her. Her situation becomes more complicated when she gets involved with the novel's antagonist, who shares her dislike for Fersen. Luna must figure out how to distance herself from Fersen.