I remember the premise was that monsters from hell could manifest in the real world and rhere were people that could either subdue/fight them and ones that could open gates to yeet them back into hell.
The hell had 7 rings to it, like layers with stronger monsters in the middle.
The main character had both talents, to fight monsters and to open gates, and he was unique in that dual ability.
I think there was an episode where a giant monster stuck it's arm out through the gate main character opened, and it was cut off after he managed to close said gate.
by Aggressive-Cat-4767