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.

Daisuke Ichijou goes on vacation to his grandmother’s beach resort. As he arrives, he admires the beautiful beach and even more beautiful ladies on it. Soon, he decides to start having fun “his own way.” He encounters many girls who will make this vacation unforgettable, including his old friends, the playful Nao Ihara and the wealthy Mitsugu Tsukushino, who proceed to compete over him. Daisuke also meets his cousin Maya Koromogae and her clumsy friend, Momona Amamiya. There are Kanae Shinjou and Mika as well, who also happen to “get involved” with Daisuke throughout his vacation. These six girls will be responsible for making Daisuke’s vacation intense, fun, and unforgettable. As they put Daisuke in many complicated situations, he finds that they often lead to passionate erotic activities.

Kazushi Sudou is a university student who is visited by his two childhood friends, the sisters Ayane and Kotone Shirakawa. When Ayane discovers that Kazushi not only forgot to buy her pudding but is also using her special lotion in the bath, she decides to take revenge and join Kazushi in his bath along with Kotone. Will the perverted Kazushi be able to remain indifferent to them both?

A middle-aged man who has lost his job and home because of his arrogant nature. Leading a vagrant lifestyle, he became embittered and aggressive towards society. One day he meets a mysterious beauty Shima Itski, who invites him to become the founder of the sex cult “Ishin No Kai” and in addition to this, she offers him a huge amount of money, a house, and a car. Of course, our hero just could not refuse the sultry beauty and now he has become the “Lord” of a mad sex cult with unimaginably depraved rituals…

When Mina agrees to come as a last-minute invitee to a mixer, she is surprised to see her brother sitting across the table. However, she decides to bite her tongue and not reveal this to her peers—even when the king’s game that they are playing starts to get increasingly sexual. Elsewhere, the nature of Sayaka and her brother’s relationship changes when her brother discovers a hole at waist-level in the wall between their rooms. Will Sayaka notice her brother watching her most intimate moments?

Flower, a local game design studio, finds itself on the verge of shutting down. After its first release turned out to be a complete letdown, the studio is now struggling to make ends meet. The employees of this all-female company desperately need additional hands to help them finish a new project on time. Tomoya Mochizuki’s passion is erotic games, or “erogames.” He can neither write scenarios nor program, and his artistic skills are quite frankly terrible. However, owing to his massive experience in the field, Nene Sonono—Flower’s director—decides to hire him as a consultant. The first thing Tomoya points out is that Flower’s employees have no sexual experience; thus, their scenarios and sex scenes lack in-depth and firsthand expertise. Eager to learn and develop their professional skills, the girls embark on a crash course to grasp the essence of erogames. Under the attentive eye of Tomoya, they explore previously uncharted waters of sexual pleasure—all for the sake of the company’s survival.

Nowa the bear lives in the forest and adopts a puppy named Airi. Before going into hibernation, Now was worried that Airi wouldn’t wean. A few months after starting his hibernation, Nowa wakes up with a pleasant sensation from Airi, now an adult dog, licking his nipple saying, “I’ve been waiting for a long time.”

A war is being fought between the goddesses of dark and light. While the former try to steal the jewels from innocent women, leaving lifeless husks, the latter hunt the evildoers. Both types of goddesses are equipped with powers to fight, but their strongest weapons are their retractable penises—flooding the enemy with pleasure is the only sure-fire way to win.