User blog comment:CrimsonWarden/Nazarick's NPC Level Count/@comment-33022048-20170904042406

The remain account of levels is pretty narrow, but I suppose that it's okay. I think that the NPC were maid by fun or to be powerful protectors, and most of Nazarick defense's forces are the POP NPCs and the mercenary NPCs. Also, could it be that other creatures obtained from the game were added to Nazarick's defenses, like Aura's pets, golems like Gargantua and the Colisseum's golems, and creatures from the Gatcha machine like Mare's dragons.