Yama's Rulebook

This world is full of strange things and full of rules. But don't panic when you encounter the rules. First look around to see if there is a man wearing a black cloak. If so, listen to him, it's definitely true. After all, the words of the King of Hell are more effective than any rules. "You don't have to know the rules. You just need to know - the king of hell, is the rule itself."