These guys somewhat fit into several parts of a definition of what I've heard for one. That or I am just am making some weird connections atm blehhh
Pretty neat though to think of it that way.
Kijimuna are wood spirits from what I've read and often red headed short with a large head. They like to be mischievous and apparently cannot stand octopuses maybe this is how octomoo ended up in the situation that it ended up in xDhttps://en.wikipedia.org/wiki/Kijimuna