I could have sworn the first time I played through the game that the guy in Owzer's house the first time you visit it was specifically called Owzer, but of course, he had no name on all subsequent playthroughs.

Indeed. Like I said, I thought that average looking guy was Owzer, but like FO said, he's just a servant. Obviously, I haven't played FF6 in ages... haven't played any FF game in ages, to be frank. :o
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