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.

Our protagonist Tatsuya was living a normal life as a video game fanatic and altogether average guy. One day he stumbled upon a dark-skinned beauty being attacked by dogs in an alleyway… One thing leads to another and she ended up living with him as she had nowhere else to go… With nothing of her own, she can only think of one way to thank him for his kindness…

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.