Gakuen Shinshoku: XX of the DEAD – Episode 1 (ES)

The story opens in a peaceful academy as winter begins. Suddenly, unknown grotesque entities invade from nowhere, turning the school into a battlefield of panic. Houichi and his friends barricade themselves, but the monsters quickly break through. The bro-con little sister, the gentle beautiful girl, and the perverted female teacher are among the first targeted. In shocking scenes, the creatures assault them with writhing tentacles, forcing intense pleasure that overrides fear. Victims start transforming—some into zombies, others into tentacle hosts. The episode builds escalating horror as the heroines are violated one after another, their bodies betraying them with overwhelming orgasms while the infection spreads rapidly through the school.