As a young boy, Yusuke came home to find his mother having sex with another man. His parents soon divorced after; seeing his mother's infidelity at a young age left Yusuke with hatred for not only his mother but for all women. Now, his father has remarried but is assigned to a distant office. Yusuke decides it is time to get his revenge on women through his new stepmother...

Akira's father, an archeologist, has remarried, giving him a new stepmother and three stepsisters, Yuki, Nana and Miu. While on his honeymoon, Akira's father makes an archeological find and decides to stay on site in order to supervise and leaving Akira at home alone with his new family members. After being discovered in bed with Yukie, his stepmother, Akira finds a box containing a scroll and three bottles. Using the knowledge his father taught to him, he reads the Sumarian language on the scroll and finds himself in a contract with the goddess Inana, who tells him to collect the love juices of his sisters in the bottles before the next full moon or else a terrible horror will befall him.

Yukio Mimura and Reika Uehara live in there family's mansion peacefully. They have feelings for each other and are sure that they will live happy together. One night, Hayato Mimura, their cousin, arrives saying he wants them out of the house. Yukio doesn't agree with this and begins to think of any way they could settle this. Hayate comes up with a contest that their fathers did to win the house before them. That contest is to see who can be the first one to break Reika. Whoever breaks her, will be the winner and keeper of the house.

Meet the lovely nurses of Ishikawa General Hospital! There's Yuriko, the tall, dark and seductive head nurse; Naho, the cute and playful girl with a sexy streak... and then there's Satsuki. Quiet and shy, Satsuki only wants to make a good impression, but she keeps screwing everything up. When she accidentally gives an aching patient the wrong medication, he cons her into releasing his pain with a healthy dose of hot and heavy sex - but by the end, it's Satsuki that's moaning in pleasure! Now, Satsuki will make sure that all of her mistakes are remedied with a little sexual therapy. But is she taking things too far? And what would her co-workers say if they knew...?

Saori is cute, perky, and dreams of being a star! Along with the beautiful Yuna and the striking Erica, Saori is part of a new female pop group named Twinkle - and this hot little group is ready for their big debut! But this tantalizing trio is about to discover that the music industry is ruthless and demanding of its female artists! First, band manager Masaki decides to give Yuna and Erica a special session in pleasure and pain... Then, as lead singer, it's up to Saori to get the band past Kijima, the shady don of the entertainment business. Using his position to fulfill his wildest desires with all of the hot new pop idols, he'll never even consider giving anyone a chance at a big break until after his carnal desires have been satisfied. Saori's mother knows this all too well; to get Twinkle noticed, she's already given in to his erotic demands.

Will, an orphan originally from Little Monica, a city of culture and arts, returns to a place he hasn't been in since his childhood to contribute to it and have a reunion with his childhood friend, Celia. What he doesn't know is that during his long absence, things have changed for the worse and Little Monica, once a city of high culture has become a capital of degeneration. The question is can Will resist the temptations offered by the city or will he succumb to it. With a little help from Celia and her sisters Tina and Mei, as well Miss Meow, they just might succeed in returning Little Monica to its former glory.

Revenge never felt so good! After Noelle's parents die suddenly in an accident, her older stepbrother Shuuichi returns to take care of her - in ways she could never have imagined. Noelle is horrified when, on the very night of her parents' funeral, the stepbrother she remembered so fondly cruelly rapes her. Then, without explaining why, Shuuichi forces Noelle to transfer to the prestigious Takamine College. Each night as he ravishes her body, Shuuichi pumps Noelle for information about the women on campus. Women like the curvaceously timid Haruko, the sexually talented Shirone, and the beautiful blond-haired bombshell Elena... Women who will be able to satisfy his insatiable desires - and provide him with the information he needs to avenge the death of his mother.

Shinji Yagami had always heard the rumors about female students being raped on campus - everyone did. Of course he never believed them until the day he stumbled across a website showing detailed pictures of female students being assaulted in the classrooms. Shocked to find himself turned on by what he sees, Shinji begins his descent into a world of voyeurism, S&M, and rape guided by fellow sadist Satoshi Kojima.