[Adept]

Meh, the only "orientalist" problem is that japanese themed weapons are way overpowered (seriously, a katana is just a kind of a scimitar, and a yari is just a spear).

The more serious problem is that the early era japan theme demons get equipment from 1600 or so (katana's and other steel gear) where the other people mostly tool about with bronze age / iron age stuff.