In Series  - Inshoku Chikan Densha 

淫シリーズ　淫触痴漢電車

One day, he sees a man molesting a girl on the train. But she never resists it. On the next day, he molests the same girl on the train, but she doesn't resist. "What about other girls?" He molests other girl, but she doesn't resist, either. His molestation gradually becomes bolder....

In Series Vol. 1  Inshoku Chikan Densha  RAW

In Series  Inbaku Kankin Choukyou

淫シリーズ　淫縛監禁調教

What does "confinement" mean? Ryosuke thinks about it. Yes, just do it. There won't be any problems. His target girls are Mika and Saki....

In Series Vol. 2  Inbaku Kankin Choukyou   RAW

In Series  Injoku Inkou Kaihatsu

淫シリーズ　淫辱淫肛開発

Anal sex.... What an erotic word.... "How can I control Saki...? Yes, I should teach her how good anal sex is."

Miu, Sakis friend, gets interested in it, and soon becomes his sex slave. But, Saki doesnt obey him.... What he does next is....

 In Series Vol. 3 Injoku Inkou Kaihatsu  RAW

In Series Inran Roshutsu Choukyou

 淫シリーズ　淫乱露出調教

One day, Ryosuke finds his sister-in-law's electric vibrator at home. He decides to rape her using her secret vibrator.... Other girls around him as well.... The girls say no at first, but they gradually get addicted to sex life with him...

 In Series Vol. 4 Inran Roshutsu Choukyou  RAW

 In Series In Goku Koushuu Rinkan

淫シリーズ　淫獄公衆輪姦

Sexual desire.... No one can deny it.... Ryosuke rapes Saki, his sister-in-law. She refuses it at first, but she finally accepts it once his dick enters her anal.... On the other hand, Miu joyfully accepts it. And Saya....

 In Series Vol. 5   In Goku Koushuu Rinkan  RAW

 In Series  Tokunou Namanakadashi

淫シリーズ　特濃生中出し

Saya, his sister-in-law, is Ryosuke's sex slave..., she can't live without his dick. Miu is his sex slave as well. Mika has sex with anyone. Chikage is her students' sex slave. Saki is.... 

 In Series Vol. 6   Tokunou Namanakadashi  RAW