Hello Ace, I manage Yamatai. Yamatai has not been abducting anyone for experimentation. We are able to clone our supersoldier people (usually these are Nekovalkyrja) for our military forces, so there's no need to convert existing people in super soldiers. Perhaps you could find another explanation for him being enhanced, like he perhaps was working for a Nepleslian gang that needed a really tough bouncer, so they paid for his upgrades (you don't have to use that idea, just trying to help by brainstorming).