C938 Talking about transactions

That's right, even though he was one of the strongest Gatekeeper in the Underworld, a Death Envoy could only dominate on the fifteenth floor, so he couldn't go to the fourteenth or sixteenth floor.

In theory, he was invincible on the 15th floor. That was his territory and his world, but no matter how strong he was, he couldn't freely travel through the 18 Hells.

On the contrary