Kowaremono THE ANIMATION

Her father Nanakura Kasumi began to stress and became a drunkard since her mother left her father to live with another man. Since then her father started going crazy and tried to rape her own son. They have sex many times each day. But by the time they do it in school, they... (Source: Translated from Nekopoi)

Kanojo ga Yatsu ni Dakareta hi

Two co-workers who met and fell in love at work end up becoming newlyweds and share a romantic evening together. However, a new worker at the company is going to attempt to have some of the new bride for himself

Ecchi with a Rural Russian Housewife

Based on the CG collection by TORYA!/Otona teikoku (TORYA!/オトナテイコク). It was a hot summer. Out of work, the protagonist visited his family's house in the countryside. His ambitions were in tatters. He forewent a job hunt in favor of lazing around the house. That's how he got close with his brother's wife. Her name was Arisa. She was a stunningly beautiful Russian bride transplanted to Japan. Her interest in Japanese was strong, and she was refreshingly open and tender. It wasn't long before the bitter protagonist fantasized about stealing her. Around the same time, his brother went on a trip. The night before his brother left, he overheard that Arisa and his brother were in a basically sexless marriage. What could be more perfect? The protagonist had his brother beat in two departments: virility and perversion. More than just making Arisa his own... could he get her to fall in love with him? (Source: DLsite English)

In school trip to the nudist beach!!

Take a school trip to Nude Beach where this beach has rules for all visitors to be naked without dressing, and also men are forbidden to be aroused. However, if someone is aroused then someone will be given the opportunity to release his desire by doing pervert things in the tent. (Source: Nekopoi and Has Been Translated and Edited)

Muttsuri Dosukebe Russia Gibo Shimai no Honshitsu Minuite Sex Zanmai

Based on the CG collection by TORYA!/Otona teikoku (TORYA!/オトナテイコク). My dad got re-married to a Russian woman with massive breasts, and she has two daughters who are half-Russian and also have a super sexy body! I have all kinds of sex with my Russian mother in law and stepsisters! The Russian girls had suppressed their desires in their day to day lives until now, but as the main character desires them, their initial resistance gives way and their bodies become honest...! In the house, at school, even outdoors! Anywhere! Sex all the way!! (Source: DLsite English)