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Overlord II EP03 044

Nazarick's NPC Experiment is a form of experimentation conducted by Ainz Ooal Gown.


As an experiment, Ainz wanted to test if it was actually possible for his servants, who already had their settings fixed, to learn new things beyond what their programming allows them to do. This experiment concerned with proving whether they could continue to develop after learning tactics or strategy.


Appointing the NPC with a certain task to be in charge of when it is not suitable for their own main classes/roles.


It was considered a success by Ainz as Cocytus was able to take command over weak undead and guide them in the flow of battle and war with the Lizardmen from the Great Lake. Ainz simply thought that through an NPC's defeat, they could probably learn more from their mistakes. Ainz was pleased with the experiment's result as there was the possibility of such character growth happening within the NPCs where knowledge could be expanded upon and developed.[1]


  • Ainz's interest in the possibility of the NPCs' settings being fixed was pique when he ordered a maid to cook a steak. Since she did not possess any Cook classes it was burned to charcoal however his interest on the phenomena did not die.
  • The first subject of their experiment happens to be done on the Floor Guardian, Cocytus without being informed about it directly.
  • Upon the successful results of the unofficial test, Ainz theorized that if he was not careful, the NPCs themselves may begin developing and harboring negative feelings towards himself or even their creators that may lead them to turn on him.
    • This suspicion was ironically proven to be true unknowingly with Albedo, who began to harbor immense anger and hatred for the other 40 members of Ainz Ooal Gown for abandoning Nazarick and Momonga and has now begun making independent plans to insure that Ainz remain as the sole ruler of Nazarick behind both her master and her fellow NPC's with her own secret unit.


  1. Overlord Volume 04 Chapter 4: Dawn of Despair
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