1
The Angel of Darkness
Atsuko Yoshikawa's first year at a prestigious Women's Academy turns into a nightmare when she discovers a sinister plot to transform students into "Dark Elementals" using parasitic seeds. As her love Sayaka is corrupted and her sister Yuko is targeted by the villainous Goda, Atsuko must fight back to save her friends. With the help of a mysterious ally named Rom, she battles the forces of darkness in a desperate struggle to purge the school of its evil influence.
2
The Secret of the Flower Monster
Haruka Tachibana discovers that Professor Shimazaki is actually a monster who maintains a secret lab of carnivorous plants and feeds on female fluids. After Shimazaki mind-controls Professor Anzai and Haruka's friend Reiko to serve as bait, Kazuya intervenes with a chemical solution to rescue them. Although the campus returns to peace, Haruka remains haunted by the experience and fears the monster's return.
3
The Dark Pact
Driven by an obsessive love for Mr. Kawamura, Hiromi Takabe enters a dangerous pact with a dark entity and a mysterious black sphere. As jealousy and bullying plague the school, the entity's plan to resurrect through absorption threatens the students and staff. After a chaotic struggle to destroy the sphere and break the entity's control, Hiromi finally finds the affection she craved, sealing her bond with the teacher.
4
The Flower of Desire
Haruka Tachibana begins her tenure as a university lecturer, only to discover that Nurse Mamiya is using a supernatural flower—the manifestation of her deceased lover, Hiromi—to enslave students and staff. After Mamiya turns Mr. Oota into a servant and targets gymnasts Mai and Mizuki, Haruka must draw on her chemistry expertise to recreate a lethal solution and stop the parasitic plant from consuming the campus.