Dark Great Tomb, D++ Maze, with the dual characteristics of [high monster density] + [monsters possessing strength beyond the current Sequence].
This maze is supervised by the National Royal Knight Order.
It is filled with numerous undead creatures equipped with skeleton armor.
The Necromancer's most classic combat method is always driving waves of undead.
But the undead in the Dark Great Tomb are different.
The Necromancer, eliminating a small portion of elite undead, mostly controls the undead known as Golden Crispy Chicken.
But the undead in the Dark Great Tomb, even the most basic skeletons, are hard as nails.
The vanguard of the National Royal Knight Order went inside one time.
After weighing the pros and cons upon returning, they began opening up entry slots to the Small Association.
Unexpectedly, six months passed, and less than one-fifth of the undead had been cleared out.
The efficiency of the Small Association was still too low.
