I Kill Demons in a Weird City

In this foggy city where demons are rampant, humble humans will become the food of night demons at all times. The night here is a paradise for demons and a hell for humans! It has been more than three years since Li Changgeng accidentally came to this strange world, and he has also been ill for three years. The bronze shrine in his mind with his name engraved on it and the Immortal Lock sealed inside is useless. "Maybe I should go out for a walk at midnight!" Li Changgeng gently opened the door. He is going to find the answer. Humans are born from humans, and demons are born from demons! Who the hell gave birth to those people with wolf heads, dog heads, cat heads, sheep heads... Whose limbs and torsos were sound?