The Most Beautiful Senior Girl In The Company Goes To Her Parents' House With A Junior Boy Who Pretends To Be Her Boyfriend To Reassure Her Parents Who Are Nagging Her To Get Married As Soon As Possible, And They End Up Having Sex Inside Her... And She Gets Fucked So Many Times That She Really Likes Him... Hibiki Amamiya

ひとり身なのを心配して早く身を固めさせたい両親とまだまだ一人の時間を楽しみたい響。両親に安心してもらいたい響は思わず結婚前提の恋人がいるとウソをついてしまう。困り果てた響は会社の後輩に期間限定のカップルとして恋人役を頼むことに。しかしただのフリのはずが、なりゆきでセックスするはめになってしまい…。