Ryoko-san and her friends at the Otogi Bank help classmates with their problems, in exchange for their help later on.
In the future, the carbon tax turns Tokyo into the world’s largest “jungle-polis” that absorbs carbon dioxide.
A young heroine Named Yoshika miyafuji joins the 501st joint wing, known as the strike witches to fight and defeat the neuroi.
At St. Mihailov Academy, a series of serial murders have taken place with all the victims being young women. Who is this rampant culprit? And which beautiful maiden will fall prey to his evil next?