Aojiru

Aoshiru (青汁) or known by the western fanbase, Cripple-Tan is a patient you can find in one of the rooms of the hospital. If you interact with his bed, green slime will start oozing out, and you'll be stuck in a room with him. Sadly, if you try to interact with him, Urotsuki will automatically chainsaw him to death. (It doesn't matter if you do or don't have the chainsaw)