Talk:Demon King/@comment-5480911-20180227192009/@comment-29963364-20180227195548

Riku did actually say that their are "higher Demonia" that are stronger  and smarter. That was the biggest reason why, even though he's smart enough to pull it off, he didn't try to out-smart and drive-off the Demonia they found.

Doing so would tip-off the Demonia (and the other races) that humans were actually somewhat capable of being a legitimate threat, prompting them to send their better (stronger & smarter) members to wipe-out the humans.