It's a hell game, who can still be a human being?

Welcome to the hell game. [Enter the dungeon: Bloody Restaurant] [You are applying for the position of: Delivery man] [Your clients include: a fat otaku with the stench of corpses, a maid who explodes at the slightest disagreement...] [Your colleagues include: a female boss who is too pretty to be human, a horse or an ox in the literal sense, a man-eating tree with a mouth full of French swear words...] Faced with these crouching dragons and phoenix chicks, Liu Zheng, who wanted to be a good person, had no choice but to stop being a human.