 If you liked
Ged Senki
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 ...then you might like
Fumetsu no Anata e
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Especially going forward in the Manga of fumetsu no anata e, there is a similar fantasy vibe. Great worldbuilding, and a similar pastural feel at times. I feel like the two could take place in a similar universe. They also have similar themes of death. Gedo Seki has a bad reputation since it did not do a good job adapting to the source material, but as a standalone film it is quite magical.