Tsukasa Hanayashiki is an employee of the illegal adult entertainment business "Club Rosebud." He is assigned as an instructor, tasked with coaching young girls who have just signed contracts to become commodities.

Sold by their families. Desperately needing a large sum of money. No other means to live. To the girls who come choosing to sell their bodies for various reasons, Tsukasa tries to help them beyond his position. Smoothing out instruction, sympathy for their circumstances, a nature that easily becomes attached to those he gets involved with... While all of these are true motivations, there is one more undeniable reason.

Yes—Tsukasa had a hobby of 'netorase,' that is, finding excitement in seeing a woman he is deeply involved with being embraced by another man. The deeper the bond he forms with the girl he manages, the greater the pleasure of the moment she is trampled. For Tsukasa, this job is the ultimate calling to satisfy his secret sexual preference.

The new girl he is assigned is Sasara Kinmochi, a pure and innocent girl. Having fallen into the adult entertainment world after her nouveau riche parents' ruin, she is sexually as naive as a virgin. Yet, her body is a superb specimen, maximally attractive to men.

To make her hidden 'woman' blossom and turn her into the ultimate product. With a dark anticipation for the decadent pleasure that awaits beyond. Tsukasa's work, once again, begins—!