So King Arthur in Japan is just English flavored Joan of Arc.

Relevant and recent smbc https://www.smbc-comics.com/comic/arthur

One of King Charles’s names is Arthur.

Any one interested in a meta fictional look at The Matter of Britain should read the comic series Once and Future. It’s simply superb

Amazing, do you have a link to the OP?

Also, quite interestingly, the accurate one should include “depression”.