This time, Hazuki Haru, who has been engaged in research and development of masturbation aids at Gutsy Goods Division, was ordered by her superior to study new products for female use (toys). She gathered various items such as rotators, vibrators, dildos, and electric massagers, and served as her own test subject while using them. As she continued experimenting, the pleasure became more and more overwhelming, eventually reaching an intense climax that made her forget about work!

これまではオナホの研究や開発をしてきたグッズ事業部の柴崎はる。今回は女性用グッズ（おもちゃ）の新しい商品の研究を上司から命じられた。ローター・電マ・バイブ・ディルドなど様々なおもちゃを集め自ら実験台となって使用をする。そのうち段々気持ち良さが勝っていき、仕事を忘れて大絶頂してしまう！？