Hibiki’s parents worry about her being single and keep pushing her to settle down, while she still wants to enjoy life on her own. Hoping to reassure them, she blurts out a lie about having a serious boyfriend. With no one else to turn to, she asks a younger adult male coworker to pose as her partner for a limited time and accompany her home. What begins as an act unexpectedly leads to sex, repeated orgasms, a creampie, and feelings that become very real.