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.

All Asuka wants is a relaxing honeymoon after her dream wedding with her boyfriend Ryousuke. Unfortunately for her, her friends Aya and Tamami have other plans for her -- on her way to the honeymoon, strange men kidnap Asuka and take her to a secret location where unspeakable acts of lust occur, while her friends watch.

Aya believed that Yumiko was her best friend, but when Aya develops a crush on the boy Yumiko loves, Yumiko decides to exact some revenge. Compromising photos of Aya turn the innocent girl into a helpless sex slave, but Yumiko's desire for revenge doesn't end there. Aya's friends and even family have to suffer as well! Yumiko and her male friends blackmail the girls into every form of depraved and humiliating situation imaginable. With friends like these, Aya will never need enemies!

A young man discovers the true erotic touch — with it he can tease any woman into almost reaching orgasm, so he decides to use it on his companions — with some interesting results.

The main character of this story is Takashiro Shugo. A former police officer who is now unemployed and spends a lot of time in a brothel. From time to time he took detective work from his former boss. When the story begins, the problem of missing people is done by him. The person he must find is Kohzuki Yura. A blind woman who has an intimate relationship before work begins. In addition, many report serial murder cases that occur very mysteriously, the victims are always women.

* Based on the game by Front Wing. The daughter of the school principal has become the Disciplinary comitee president and so she decides to forbid any romantic behaviour on the school. So the Love club must hide on the basement of the school church, they objective is to study love and all romantic behaviour they can, such thing defies the Comitee president and she'll take action but she doesn't expect what will come in response.

Following her graduation from middle school, Yuzuhara Konomi enters the same high school as Kouno Takaaki, her childhood friend. As the new school year begins, they meet their childhood friend Kousaka Tamaki, as well as many new acquaintances. Unbeknownst to the group, their encounters with each other will soon lead to many memorable adventures.

In the big city of Yanagihara, the masses of people and buildings make it a bustling place to exist, and yet, people will meet and fall in love here in this city.

The Diclonius, a mutated homo sapien that is said to be selected by God and will eventually become the destruction of mankind, possesses two horns in their heads, and has a "sixth sense" which gives it telekinetic abilities. Due to this dangerous power, they have been captured and isolated in laboratories by the government. Lucy, a young and psychotic Diclonius, manages to break free of her confines and brutally murder most of the guards in the laboratory, only to get shot in the head as she makes her escape. She survives and manages to drift along to a beach, where two teenagers named Kouta and Yuka discovers her. Having lost her memories, she was named after the only thing that she can now say, "Nyuu," and the two allow her to stay at Kouta's home. However, it appears that the evil "Lucy" is not dead just yet...

Ryuuichi is a university student. He used to live alone and enjoyed his school life. But one day, his apartment was destroyed by a fire... He reluctantly comes back to his house. But his house has been changed to a boarding house for girls...! It seems there is no place for him to live. But they all allow him to stay there together! His new life begins like this...

Mizuho stays after school to teach some students some equations, but that is not all there is to it. She also invites her boyfriend, Tomohisa, for some excitement. While giving those students the lesson, she is also giving Tomohisa a handjob; she even goes as far as to giving him a blowjob right then and there. After all that hot action going on, Mizuho invites Tomohisa to her house to continue their good time together...

Satsuki Kakeru lost his sister by suicide and has been living a dull life ever since then. One day, he is transported into a bizarre world "Red Night" along with his friend Minase Yuka. In order to survive and escape from Red Night, he fights against Dark Spirits (Ralva) and Black Nights.

Junichi Asakura lives with his adoptive sister Nemu in the crescent-shaped island of Hatsune Jima, a place where cherry blossoms bloom throughout the year. In this island, people have mysterious powers and attributes. For example, Junichi has the power to see other people's dreams, and he was also taught by his grandmother to magically create sweets. One day, Junichi's cousin and childhood friend, Sakura Yoshino came back from America all of a sudden. To Junichi's surprise, she looks exactly the same as the girl that moved away six years ago, and hasn't aged one bit. And she came back to remind Junichi of their childhood promise... It is a bittersweet tale of magic, love, hidden desires, and unattainable dreams.

Shibui Ryuuji is a teacher of a girl school whose students are born in well-off families. All students hate him because of his figure and perverted nature. However, he happens to know the weakness of Tenkawa Ayumi, so he raped her. Tasting blood, he begins to rape his students, one after another taking advantage of their weaknesses.

Tomohisa and Endou aren't either so handsome or ugly; they are just normal boy students. They're looking at Mizuho, the senior student, and Mikura, their classmate. Mizuho is a returnee student, and she attracts all the students by her beauty. Mizuho notices their eyes, and she gives Tomohisa a suggestive look. One day, Tomohisa finds a note in his desk. It says, "I'm waiting in the ladies' room on the third floor". He goes there and finds Mizuho is waiting for him... The next day, Tomohisa can't help recalling the event the day before. He happens to find that Endou is gone, and also Mikura, whom he loves secretly, is missing, too. He's afraid that they're doing things. However, exactly, they're doing things on the fire escape.