This masturbation addict, who's always had no luck with women, had his hardest time ever when he secretly watched his crush, the quiet and beautiful receptionist "Ms. Rin," being fucked to multiple orgasms by the lewd company president using a seed-planting piston. (Rin Seo IPZZ-925)

Aizawa works as a salesman at a consulting firm. Although the company is entirely male, a receptionist named Rin, dispatched from a talent agency, joins the team. Rin is usually taciturn, only discussing work-related matters, but Aizawa is deeply attracted by her unintentional smile and develops feelings for her. Aizawa tries hard to strike up a conversation with Rin, finally managing to exchange a few words, but… It turns out that Rin is actually the company president Nakata's sex slave. She is forcibly violated every day, yet derives a secret pleasure from it. Aizawa accidentally witnesses this, and although deeply shocked, he also gets an erection… But why is she being silently violated all this time? A shocking work from NTR master Hiroyuki Kimura, offering an intensely melancholic yet rock-hard experience.