This story about a married woman, as is usual in such stories sexually unsatisfied in married life, and decided to make up for lost time with her brother, who came to stay with her husband and children. What started as a harmless joke on a drunken bench, will grow into a constant frenzied sex always and everywhere, at any convenient opportunity.

Seika Girl’s Private Academy has a dark secret. All of the girls at this school are from prestigious families and thus have never dated… even once. So the school had to come up with a way to make sure they didn’t get too overwhelmed by their urges..

Ever since he was a kid, women have bullied Boku, which marks him so that he stays stuck in the past and becomes unable to move on with his life. One day, his childhood crush, Kasumi, invites him to her wedding. As he watches everyone around him lead a happy adult life, Boku realizes he has been left behind, causing him to wish he could start his life all over again. Somehow, this desire comes true, and he ends up traveling back in time to his preteen days. He soon meets Sera Narumiya, his past neighbor, who frequently harassed him throughout his school days. Given an opportunity to redo his life, Boku decides to confront his past problems, but now with the mentality of an adult—this includes, of course, a more sexual approach when dealing with troublesome women.

Emi is a high-school girl with a very strong love for her younger step-brother. She finally decides that it is time to confess her love to him, since it is near her 18th birthday. But before the climactic moment where she can confess her love; debt collectors arrive to confiscate her father’s properties.

A lone tutor in a mansion in the mountains, with only beautiful women surrounding him… there’s only really one possible outcome.

Suspicious of his wife, Misako, Rintarou hires a detective to spy on her. The report he receives from the agency contains a picture of Misako in the act. Looking like an idiot, the guy in the picture is Kuroda. Rintarou calls both of them out. In return for looking the other way, he wants them to film a sex video… Kuroda shows footage of him fucking Rintarou’s wife, per Rintarou’s request. Kuroda tells Misako to meet him at a park one day. She disguises herself with a blonde wig and sunglasses as she heads towards the park. Kuroda tells her to get naked and he puts a vibrator in her pussy and makes her straddle a wooden horse as she sucks his dick. All of this is being watched by Rintarou…

More than a hundred years after its founding, this country has now reached the peak of prosperity and decadence. As the Empress controlling this nation spends her days indulging in the pleasures of the mind, body, and soul… other nations who do not abide by these vices band together to form “The Holy Alliance” and prepare to wage war upon the Empress..

Three students are in a school late at night fighting supernatural enemies. As they are about to leave, they get attacked and trapped. Based off the Inyouchuu game.