Jewel Cosmos, Akari and her childhood friend, Hayato, confront the giant genus that suddenly appeared in the city. Manipulator of tentacles was Nozomi, whose Jewel of Reason was defiled with seeds of "Dark Desire" and fell into the Dark Iris... Nozomi, who has a futanari big cock in her crotch, asks for help by sucking the power of darkness, and Akari works hard to serve her mouth with deep throating. However, it's a bright red lie!? Akari isn't going to abandon her friendship with Nozomi even if she is betrayed and fucked by her futanari best friend.