School teacher Yurika Hoshimiya transforms into the Masked Beautiful Saint Warrior Eclipse using the sacred power of a goddess to fight monsters daily. One day, her colleague Makishima is possessed by a monster and makes lewd advances toward Yurika. Sensing the danger, Yurika transforms into Eclipse and battles the monsterized Makishima. Eclipse holds her own in the fight, but upon hearing a school announcement that students have been captured by monsters, she is unable to fight back and has her body lewdly defiled by Makishima. Eclipse reaches climax multiple times and is made to feel intense pleasure, but she eventually releases all her sacred power to save the students and successfully defeats the monster possessing Makishima. However, at that moment, the monster's true form—a tentacle—tightens around her body?! It invades her inside, pouring dark energy into Eclipse... [BAD END]
