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..

Every school has secrets, but few leave a stain that won’t wash out. In a certain school, there was once a fun club centered around magic but had turned into murder and a lust for power. Sealed and willfully forgotten, the resulting evil of that day remained chained in the school’s basement. Twelve years later, high school student Taki Minase, while inspecting the place where the incident took place, uncloaks the secret plastered in blood—a book of magic called “Black Bible.” Trying his luck with its love curses, he soon finds out the magic proves real and easily penetrates the hearts and bodies of his fellow classmates. The resulting intercourse leaves the student body very vocal, and Minase’s acts do not go unnoticed. What was at first a simple stroke of curiosity becomes much larger and harder to control. Fully swallowed by the unshackled darkness, everyone he knows becomes a victim, including his childhood friend Kurumi Imari. Torn apart, Minase finally realizes his mistakes and that he must reverse them in time if he ever hopes for him and Imari to come together.

Teacher Nano Saikawa hasn’t given much thought to marriage, but her father’s friend wants her to have a marriage interview with his son, Souichirou Takamiya. After the interview, they spend the day together. As they gradually become more comfortable with one another, Souichirou asks for her hand in marriage. Things quickly heat up between them, and the two wind up in bed together. However, when she removes his glasses, she discovers he is not Souichirou; he is actually one of her problem students, Souji Kuga! Souji’s explanation is watertight: when he realized his brother was to be Nano’s intended, Souji posed as him in order to be with her. And what’s more, he is even confident that his family will approve of their marriage. However, an illicit relationship with a student is the last thing Nano wants. But will she be able to resist his charms, especially when her body begins to ache for his?

Dude has to impregnate every single chick in his high school to save them. From what you ask? Fuck knows. As a wise man once said – Fap first, ask questions later.

Childhood friends and lovers, promising each other to be together. She is a track and field star who pushes extremely hard to get a recommendation to the same school as her lover. Unfortunately it looks like the ugly bastard of a track and field coach has been NTR’ing the fuck out of her, utterly destroying their dreams.

A pandemic that originated from a pharmaceutical company’s research institute. The infected person becomes a captive of sexual desire and attacks the opposite sex, and the attacked partner is also infected…