Rena is a young lady attending S Academy, an all-girls school in Momonochi Town. Though she appears to be an ordinary high school student, she is actually one of the demon-hunting Sailor Girls, known as Sailor Alice, guardian of Mars. One day, she witnesses the demon Technique attacking the city. Overwhelmed by its strength, Alice temporarily drives it back but gets caught in its poisonous mist and is forced to retreat. To grow stronger, Technique begins absorbing the skills of kendo masters, artists, chefs, and others. Alice confronts it once more, but as Technique evolves with advanced sexual techniques, she is gradually overwhelmed and ultimately falls completely under its control. In the end, she becomes the sex slave of the demon Technitian... [BAD END]