Yakutowaruto made his name as a swordsman during the Empire-Uzurussha conflict, though he'd go on to become far more famous afterward. After dominating the royal tournament so thoroughly that observers barely questioned the result, he earned the title "Blade Master"—and the Emperor's personal attention. The ruler offered him wealth and status on the spot, but Yakutowaruto wasn't interested. He turned it all down, which honestly tells you something about the guy.
He has a daughter, Shinonon.
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