Thanks for the pickup!
Noma: Do something!
The girls used "Summon more monsters"
Noma: Did I make a mistake in letting the most capable one to get caught first?
That said, Noma does remind us of the lore that for some reason, the monsters seem to treat girls different than guys. And unlike the girls, Noma doesn't seem to be gifted with overwhelming mana - ie: he probably already realized that he's frankly lucky to even survive, world-wise. Of course, we realize that he survives because he's a cute trap.