Tachibana Runa, a twenty-six-year-old librarian who loves books, loses her apartment in a fire and risks losing her job at the library. A university student who regularly visits the library, Meguro, offers her a place to stay. Grateful for his kindness, Runa decides to repay him by helping with whatever work he does on the side—only to discover that Meguro is a popular erotic novelist. What begins as a cohabitation arrangement for mutual benefit gradually deepens into romance. Runa, shy and inexperienced, is drawn to Meguro's gentle nature, while he finds himself increasingly attracted to her earnest sincerity. The story follows their relationship as they navigate the awkwardness and growing intimacy of living together, with Runa learning about Meguro's writing world and her own hidden desires. The narrative arc moves from the initial crisis of losing her home, through the shock of discovering his secret profession, to the slow buildup of emotional and physical attraction, culminating in a heartfelt conclusion where both characters openly acknowledge their feelings. The manga is set in a contemporary Japanese town, primarily in the library where Runa works and the shared apartment. It is a two-volume complete series.