Sylvia, an ordinary girl living alone deep in the mountains, is visited by a man named Steve and taken to the remote city of Elanberg. There, without understanding why, she is suddenly pushed down and roughly rapes by him. Despite the traumatic first experience, Sylvia soon feels a mysterious power surging through her body—she has unknowingly awakened a hidden talent for alchemy, triggered by semen. Entrusted with developing the town using her new powers, Sylvia must now collect semen from men as her source of alchemical energy. Thus, after bleeding from her lost virginity, the novice big-breasted alchemist Sylvia is born. To fuel her alchemy and grow the remote city, she realizes with dread just how many men she’ll have to take inside her…

Yuna, the bitch who devours virgins, is hunting for a personal exclusive cameraman on Instagram. One day, she thought the usual creepy otaku would show up as always, but the person who appeared was a total hunk…!? Desperate to fuck him, Yuna loses all control—she starts begging for his cock herself and frantically grinds her hips like a whore…

Akane Misaki has decided to start living alone. She feels a sense of discomfort due to the abundance of her belongings in her small room, but she thinks it’s because of the small space and starts to unpack her clothes. After a while, the door opens, and an unfamiliar man appears. The man’s name is Ken Hazama; according to the landlord, due to a contract mistake, they ended up in the same room.

“They say that an ejaculation after three days of restraint feels like you’re ascending to heaven,” and so the elegant maid Reika not only takes care of her master Reiji’s daily needs but also takes charge of his orgasm control!? From morning, Reika keeps teasing Reiji’s cock and stopping just before he climaxes♪ After all the relentless teasing, what kind of extraordinary service will Reika provide on the promised third day…!?

Colette lives quietly with her master Priscilla in the mountains of a certain country, is learning alchemy, an epoch-making technology that synthesizes items using the semen of living things. Despite being still half-baked with no experience, Colette is able to become a full-fledged alchemist thanks to Priscilla's somewhat aggressive guidance. Now with her own studio, Colette works hard, but, while on a certain quest, she is prevented from accomplishing it by a powerful monster.

Hikari Hyakkiya is a catgirl who runs a detective agency in the town of Azamati. She investigates various mysterious incidents connected with immoral yokai.