Mind of tempest
(he/him)advocate for 5e psionics
I know the chinese is Yaoguai but not the Korean or if the Japanese have a clear category as youkai is like saying fairy, hell a few crossed over to full god.If you want a word from real-life lore, it's probably however a Mandarin Chinese speaker would pronounce the kanji for kemonomimi. Shapechanging animals have a long history* in East Asian mythology.** If you're want to pull form DnD lore that's hengenyokai, which is also Japanese. But DnD has had a problem of thinking "Japan" when they're trying to think "Asia."
The main problem with using gumiho as evil kitsune is I wouldn't want to only reference to Korean mythology to be 'like Japan but evil.' So one would want to do a lot more research there.
* often as "good wife material", for some reason
** and everywhere else
Well it is psionics.
the issue with psionics is more use in party and having them as something beyond strange one-off special guys which always makes something not work in a setting.the options always lack both a core look and place they could be put, most just look to human or are mutant humans the rest lack a setting function and a cool look.
it would need to be done as core for a setting book like how Eberron has artificers.