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The people of the Fisher Tribe helped him recover and stay in this small village, while eating the delicious fish given to him as offerings, he hunted down strong beasts for them in return, and taught the young how to butcher large monsters and use their fur for clothes, their bones for weapons, and even their innards for medicine and special types of concoctions. Alongside even teaching them his self-taught alchemy using mana cores, which he had perfected over the years of trial and error.
Check "The Protagnist's Sister Is Actually the Strongest"!