Yuri, the ambitious president of the newly formed Eroge Research Club, recruits Mikoshiba to be the lead artist for her project to create the ultimate erotic game. After discovering Mikoshiba's secret sketchbook of perverted drawings, Yuri uses the art to blackmail him into joining. To further motivate him and spark his creativity, both Yuri and fellow member Saitou engage in explicit encounters with Mikoshiba, blending lust with artistic inspiration as the club's chaotic activities begin.