I feel like uni is actually rly powerful but he just haven't understand his powers yet

I think he's kind of realized it since the end of the last volume, he just only uses/talks about it when it's needed--cuz he has the ability to literally shape reality to his will, lol. Don't want demons attacking your kids? POOF! They're gone! Not strong enough to stop the prince from turning into a demon but you want to know who did it? POOF! The culprit is now glowing for all to see! ;)