NSFW - Highschool of the Dead x Lollipop Chainsaw Crossover
Highschool of the Dead and Lollipop Chainsaw are both published by Kadokawa Shoten so it’s no wonder that there was an official crossover in the video game via unlockable costumes: Rei Miyamoto and Saeko Busujima. Artist Ito Eight took it to the next level with a hentai doujinshi titled Lollipop of the Dead.

Saeko and Takashi are overwhelmed by zombies and he gets bit. Juliet saves Takashi by decapitating him like her own boyfriend, Nick. When the zombies return, Juliet convinces Saeko to appeal to their sexual appetite to pacify them. Naturally, Takashi and Nick get jealous so they attach themselves to some zombie bodies and take their revenge!