Honjou Rumiko is a school teacher caught in a web of blackmail and deceit. She is caught by 2 Yakuza gang members and forced to have sex with them and their clients. Eventually they start recruiting her students and she is forced to break up with her fiance as her world turns upside-down.

Yamamoto Akuji noticed that the world is a totally different place after his release from prison. He experiences Osaka as something very new and strange after he got out of prison. During his imprisonment, the hierarchal structure flipped upside down, making it a world where the women dominated over men. Militia, churches, businesses and private businesses are operated by a female figure. Men were powerless, being controlled and enslaved by the women in Osaka. Being angered by the situation, Akuji and his partner Satsu begin their payback by teaching the stuck-up women in Osaka a little lesson...

The story revolves around Takuro Hayami who transferred to the mostly female Saint Arcadia School. Seemingly all of the girls want to have sex with him because the school only recently started admitting male students. Takuro seems like a normal student, but what the girls later realize when they try to take advantage of him is that he has a secret. Takuro has an “Ultimate Sex Power” that becomes the focus of St. Arcadia’s sexual power struggle.

Handa Shinobu and Naitou Momoko have known each other since childhood. Shinobu fell in love with Momoko from the day they first met. Now in high school, Momoko has forgotten about the past, but Shinobu has not. Both follow their own paths but Shinbobu still hopes for Momoko to remember the promise they made long ago.

As Yusuke Nakonishi begins his new job at the Best Beauty Body Lingerie Company, little does he know that he's about to find himself in the center of a ring of business and sexual intrigue. Charged to disrupt and eliminate the cohorts of an opposing faction, Nakonishi thrusts himself on the prowl after three of his sexy co-workers around whom this sex drama spirals.

A fire rages in the city, engulfing everything in its path with its flames. Just as the situation seems hopeless for the inhabitants, a god-like apparition suddenly descends from the sky, and all the flames are extinguished in a bright flash of light. In the blink of an eye, she creates a new city within a large tower, and the inhabitants begin to worship her. But the supposed goddess is a demon, and her succubi are stealing people’s life force through sex. The only way to stop her is her adversary Seimei, who even seems willing to enter the enemy’s domain of lust and horniness.

A Long time ago, a curse was cast upon the Rindo family. The curse: the family could only give birth to girls. The only way to temporarily lift the curse was to have a child with someone from the Hizuki family. Once the curse was lifted, it would haunt the family again every 3rd generation. Many years have passed and now, Naoto Rindo will be the unfortunate one. His former fiancé from the Hizuki family has passed away due to a tragic accident and now he must impregnate one of the other four girls from the Hizuki family, however, time is running short. Will he be able to successfully impregnate one of the girls with a boy? Or will the curse ruin his life, forever... ~from anidb

Saionji Akitsugu is the heir to his father's immense fortune. But, he hates his father as he holds him responsible for pushing his mother to kill herself. When his father dies, Saionji is the least bit inclined to claim his inheritance. But his newly arrived secretary, Sannomiya Rei convinces him otherwise. He finally arrives at his ancestral home - a palatial mansion brimming with pliant maids who, he presumes, existed for the sole purpose of servicing their now deceased master...

When the new instructor arrives, her lesson plan is filled with debased acts and sinful examinations. And the only way to get some extra credit is to volunteer for some hands-on learning!