C55 First Kill the Boss

The Giant Beast Behemoth was a terrifying Monster that had caused the strongest group of adventurers to shrink back a hundred years ago.

It was because of its existence that the historical records of the current era described the progress of the 'Orcus Labyrinth', and only touched upon the 65th floor of the underground world.

And now...

"From the statistics provided by the system, three LVs