The Takeshita Demons books feature Japanese monsters and demons, called yōkai (or youkai).
A kappa is a water-loving creature who keeps a bowl of water on his head. He loves to eat cucumbers, but he also drinks blood, so be careful!
A hannya is a demon who has been driven insane by jealousy and rage. Her face is marked with all the anger of other people’s souls.
Now you know a bit about them, it’s up to you to decide what colour they are!