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Shazai Kaiken (忍者屋敷) was a room presumably located on the 9th Floor of the Great Tomb of Nazarick.


The Shazai Kaiken was created by Tabula Smaragdina as a base in order to see if he could enhance the security measures of the back door in the Treasury. After the members of Ainz Ooal Gown had their fun with the room, by offering apologies to their friends at the stand, Tabula decommissioned it, removing it from the dungeon.[1]

Layout & Features[]

The Shazai Kaiken resembles a news media conference room, with a tube ceiling lights. At the back of the room is clothed table with several microphones.

When a person stand in front of the conference room, and apologizes or says "that's right", the gimmick in the room activates, causing news camera flashes, simulating the effect as if one were at a real new media venue.


  • The reason why Tabula implemented a voice recognition feature into the room, as he wanted to see if he could add it to the Treasury, as a security measure that could recognize the owner's voice was far more impressive than a password.
  • In Japanese culture, "Shazai Kaiken" or "apology press conference” is a method used by the public to have individuals be accountable for the actions. It is used by the Japanese corporate world to have business chiefs who committed offenses or mistakes to read a profoundly apologetic statement and lower their heads and bow deeply to their audiences.



Great Tomb of Nazarick
1st-4th Floors Residents
Shalltear BloodfallenKyouhukouGargantua
Well of the DeadAdipocere ChamberBlack Capsule
5th Floor Residents
CocytusNigredoNeuronist Painkill
Frozen PrisonSnowball Earth
6th Floor Residents
Aura Bella FioraMare Bello FioreGashokukochuuouFennQuadracilePinison Pol PerliaIrisGagarpurVioletAnkyloursus LordShiramochi-ō
Gigantic TreeAmphitheaterGreen HoleField of FlowersTrail of the Fey
7th Floor Residents
DemiurgeGurenEvil Lord WrathEvil Lord GreedEvil Lord EnvyEvil Lord Sloth
Blazing TempleRiver of Lava
8th Floor
VictimAureole OmegaRubedo
9th Floor Residents
Sebas TianClavuShihoutu TokituPatissierTuareninya VeyronCixousDecrementFoireLumièreIncrementFithFothEtoile
Spa Resort NazarickRound Table RoomTheatreMaid Café PleiadesHarem RoomCanteenBarGuest RoomNinja MansionQuiz RoomYamaiko ShrineCasino Resort NazarickYo Za ShitzuShazai KaikenPhoto Studio TabulaBeauty Parlor
10th Floor Residents
Ainz Ooal GownAlbedoYuri AlphaLupusregina BetaNarberal GammaCZ2128 DeltaSolution EpsilonEntoma Vasilissa ZetaGremoryTitus Annaeus SecundusLibrarian JCocceiusUlpiusAeliusFulviusAureliusProtagonistSlimekoLibrarian B
AshurbanipalLemegetonThrone RoomAudience Room
Pandora's Actor
Other Residents
Pestonya Shortcake WankoÉclair Éklair ÉklareChacmoolHamsukeChief BlacksmithPulcinellaGrantMondenkintoChotchino Takaioji