In order to avenge her murdered family, Ai fights to eradicate the monster called Yodomi, and at the school she transfers to, she meets Tadano, a teacher who keeps being targeted by Yodomi. - Ai tries to disperse Yodomi who attacks Tadano so that her true identity is not revealed, but Tadano is taken hostage by Yodomi Gyurnu who controls the tentacles, and unable to use her power, she writhes in humiliation and is squeezed by the tentacles, and Gyurnu - I was raped by... - However, Ai, who does not give up on revenge, picks up the spear and saves Tadano, successfully killing Gyurnu! - However, Tadano's true identity is a Yodomi named Golba who disguised himself to get closer to Ai! - Golba robs Ai of her magical powers as revenge for the murder of his compatriot, and then lavishes her with sex. - Will Ai, who is forced to climax repeatedly, be able to defeat her family's enemy? - ! - [BAD END]