University student Seo In-ha meets a young woman on the subway and instantly falls in love. After joining a local book club, he is pleasantly surprised to find that the woman, Mun Hie-jae, is also a member. Although he makes a poor first impression, In-ha and Hie-jae eventually become friends, though he is left disappointed when she later rejects him, as she is more interested in another student, Kang Seong-ho