After Hughie became too heavy to fly, Yang had the idea to ask Kay because he could change his shape. And Kay was happy to do so. As a winged belt, Hughie can fly again, but his abdominal girth had tripled, which left Yang speechless.
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Wigang is trained by the eight legendary and strongest warriors, who sacrifice themselves to send him to the past as the ultimate weapon against the evil lord, but the body he obtains is very obese.