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Posted under Tag Alias and Implication Suggestions
Updated
Uhh, aside from the one manga, Po-Ju seems to be an entirely different person from Kiwa. They may have stolen the artwork, or Po-Ju may be a publisher, and therefore a copyright, not an artist.
きわ goes by the name Kiwa according to all of their different profiles, and as far as I can tell, they have no links to the Po-Ju items, but they do have a link to みどるあ~す, midoroa~su, or middle_earth, though they Twitter it as MiddleEarthKiwa
Updated by anonymous
The tagger hasn't been active for a few weeks, so I'll just tag the proper artist on post #564715 and edit my post. Thanks for your expertise in these matters, I don't know much about the Japanese art community.
Updated by anonymous