Beomhwan, freshly discharged from the army, returns to his university’s art department to resume his studies. But his plans for a quiet comeback are disrupted when Taeyeon, a cheeky junior, discovers a secret from Beomhwan’s past he’d rather keep buried. Enticed by the cash rewards attached to solving infamous campus ghost stories, Taeyeon ropes Beomhwan into teaming up with her athletic friend Mari. Together, the trio investigates the school’s darkest rumors—perverts in trench coats, animal cruelty, hidden spy cameras, and more. As the mysteries unfold, Beomhwan and Mari find themselves growing closer, stumbling awkwardly through the unfamiliar terrain of first love. Haunted hallways, eerie rumors, and romantic tension blend into a story of secrets, courage, and youthful longing.