"Time to go," said Cassius as he sauntered into the dreadful scenery visible beyond HELL's Gate.
Stopping ever so briefly, he took one last look at Viola and everyone else he had the honor of getting to know in the world he grew up in.
"Goodbye, everyone."
Those were his final words.
"Come back alive, Cassius…!"
Cassius smiled at the heartfelt shouts of everyone as he vanished into the nightmarish world beyond HELL's Gate. The doors closed thereafter, with the entire Gate completely disappearing in the next instant.
— An unspecified amount of time later —
HELL had seven Floors, just like the rest of the Towers, and, like them, it had a very unique geographical and hierarchical layout. Each Floor was ruled over by a specific number of Demon Kings—three for the 1st Floor, six for the 2nd Floor, ten for the 3rd Floor, and so on.