Akari is a thirty-year-old office worker who has no romantic or sexual experience and secretly listens to situational voice audios featuring seductive younger boyfriends as her escape from a lonely daily life. She works in the sales department of a company where the engineering section has a notoriously quiet and expressionless younger colleague named Yanagida. When a work assignment forces them to interact, Akari accidentally hears Yanagida speak in a low, rich, deeply attractive voice that rivals the voice actors in her audio dramas. Startled by her own reaction, she begins to notice him more. A pivotal disaster occurs when Akari mistakenly plays her voice audio aloud in the office, exposing her private hobby to her amused coworkers. Humiliated, she flees the room, but Yanagida follows her, shields her from further embarrassment, and later reveals that he not only knows what she was listening to but can reproduce the same kind of seductive whispers himself. He begins to actively pursue her with a gentle but determined approach, using his voice to draw her in and offering to fulfill her fantasy scenarios in person. Akari struggles between her growing attraction and her deep-seated fear of being hurt, rooted in a past relationship where she was told she was reading too much into kindness. Overcoming her anxiety slowly, she admits her feelings, and Yanagida confesses that he genuinely wants her to love him back. The two become a couple and begin navigating a real relationship outside Akari's audio-driven fantasies. Notable narrative arcs include their first dinner date, a secret encounter inside a storage room locker where Yanagida performs a custom voice scenario requested by Akari, the reappearance of a male college acquaintance who triggers Akari's past trauma and Yanagida's jealousy, a trip to an amusement park and a haunted school uniform event that deepens their bond, and a company camping trip that introduces Yanagida's charismatic colleague Hoshino, another man with an attractive voice. The story follows their progress from mutual confession through physical intimacy, with Yanagida's consistent patience and care gradually helping Akari shed her insecurities. The setting is a contemporary Japanese office workplace, with key scenes taking place in the office building, company events, restaurants, Akari's apartment, and Yanagida's home. Additional volumes include extra chapters covering holidays, dates, and the introduction of side characters who orbit the main couple's growing relationship.