Kotobuki Ryou, popular AV actor with a "handsome face, good technique and perfect dick" boasts on a live online broadcast about how he "would never come from a sex toy." Because of that, he is asked to try out a sex toy company's products.

Ryou is determined to give it a try, but he then meets the other company representative – Koga Takayuki – who makes Ryou come using sex toys. From then on, he's not able to forget the sensations…