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M. L. Wang: The Sword of Kaigen (Paperback, 2019, Independently published)

On a mountainside at the edge of the Kaigenese Empire live the most powerful fighters …

Review of 'The Sword of Kaigen' on 'Goodreads'

Sorry to be cliché, but it gave me strong Naruto vibes, and, something i should have looked into, "The Poppy War " vibes... All in all, this was an immersive epic japanese inspired fantasy read and I recommend it to anyone even remotely interested^^