Kan in no gakuen – Episode 1

In the not-so-distant future, an enigmatic message is left by Kadomori Shizuku for her classmate and lover, Hosokawa Seiji. It reads, "If you can get power strong enough to make the world at your own will, what will you do?" But after this, something strange happens - she suddenly vanishes without a trace! Seeing that something is off, Kasumi, Shizuku's twin sister, starts investigating and discovers her sibling has been using forbidden powers from the Kadomori family lineage. This power allows them to open up a long-sealed gate - one that was explicitly warned against opening by generations of their family before them!

With no choice left but to act on instinct, Kasumi rallies six other girls who were chosen specifically for this task: guarding the mysterious and unpredictable portal. They all band together with determination in their eyes as they prepare themselves for a journey through an unknown world that holds mysteries beyond anything any of them could have ever imagined!

Just when everything seemed hopeless, a new figure appears before them - none other than Sora, another strange girl who has seemingly emerged from the now open gate. Now it's up to these seven girls and their combined strength, cunning wit, and intimate knowledge about each other's bodies (since they are all close friends or sisters) to navigate this perilous path where danger lurks around every corner!

But will they be able to survive? Will they reunite with Shizuku before it's too late? And most importantly... who the hell is Sora, and why does she seem so familiar yet so distant at the same time? As the girls journey deeper into this strange new world, they must use every trick in their arsenal - both sexual and supernatural. They will engage in acts like double penetration sex with tentacle monsters or take part in group BDSM rituals involving magical artifacts while trying to understand the true purpose behind opening that forbidden gate!

Only by embracing their sexual desires can these girls hope