1. A stranger such as a bandit or enemy. 2. Someone who can’t go straight. A person with a habit. 3. Things that can’t be guarded. Things that can’t be forgiven. Things you don’t know. 4. monster. Japan call “Kuse mono”.
Japanese calls Chi-Mi-Mo-Ryo. evil spirits of mountains and rivers. it’s a monsters. There is a theory It depends on the book, but “CHI” is the god of the mountain, “MI” is the monster, and “Moryo” is the god of water.