Yeah, again I think the translator here clearly doesn't actually understand Japanese even a little and is just outright guessing at what's being said. It's especially obvious here because the raw text is visible in one page.
This upload:
"Just look at him. He eats twice as much as I do...
I tracked down the raws and @Fumettosa is right, all the stuff about a grandson is a complete fabrication. The "translator" just pulled it completely out of their ass, Yujiro says nothing of the sort. Even if you can't read Japanese it's a simple enough matter to transcribe the text into a...
Katou is like the biggest jobber in the entire series and now's the time they pick to try and make him seem badass lol. I know Dorian was just set on fire and all but come on, it's Katou.