Thread:Lt. Gonzague/@comment-26544002-20160226053235/@comment-27662613-20160417195946

We aren't sure if Arima is truly a human, though. He's displayed abilities very similar to Furuta's, who most likely grew up in the Garden alongside other powerful ghouls, such as Rize. Moreover, there's still that one ghoul able to pass the RC scanners who Eto hinted to and, as far as we know, they're still able to come and go from the CCG HQ as they please.

So yeah. Arima being a normal human would be kinda lame in my opinion; he can't be so strong only because he's a prodigy.