Maya, a single mother who has been raising her son Yuuki on her own since splitting up with her husband, often invites Yuuki's friend Shinpei, who is also from a single-parent family, to dinner. However, Shinpei is actually fascinated by Maya's voluptuous body, which cannot be hidden by her clothes. Not knowing this, Maya invites Shinpei one day to "take a bath together." Shinpei is excited by Maya's naked body and his penis grows rapidly, and seeing this, Maya is also captivated by her immature sexual desire... #ChiefP