The Sakuragi couple moved to a larger apartment, thinking about trying to get pregnant and the future. Their neighbors are nice and tell them about the neighborhood. If there's one thing they're not happy about, it's sex with her husband. She's not satisfied with her husband because he finishes quickly, so she uses masturbation to relieve her stress. One day, her neighbor tells her that her voice is leaking out, and she thinks he's going to scold her, but...