
The hentai's protagonist, Mikoshiba-kun, accidentally ended up in a sketch club (he accidentally dropped his sketchbook, and his drawings caught the eye of the club's leader). He was the only guy to join. The club's leader, Shibasaki-san, is a very strange yet incredibly energetic woman. She has a beautiful body—enormous, full-bodied D-cup breasts, a slender, wasp-like waist, and a firm butt. On the very first day, Shibasaki announced that she had decided what the club would focus on in the near future—developing an eroge (erotic game). However, to gather the necessary information and produce high-quality illustrations of sex, a man with drawing skills was needed. Mikoshiba-kun, one might say, became her guinea pig, required to meticulously sketch every depraved act that occurred to him. What won't you do to develop a quality product?