Ningyoumadajou

Ningyōmadajō is the primary headquarters of a Criminal Organization by the name of Jūsanseiza, it is located within the subconcious of one of the current Triumvirate, it is created by the Zanpakuto known as Ningyōmada, and made real by another of its abilities; Ningyōmadajō is abit special in that it exists as both a seperate dimension and a dream at the same time, meaning that others are capable of physically entering it despite its status as a dream realm as well. The castle doesn't need defensive mechanisms or traps of any sort due to the fact that Izanagi completely rules the realm, and by extension any enemy whom have managed to make their way inside.

It is quite easy to imagine that this is the reason that no one has ever managed to capture one of the members alive.

Rules
While inside the Castle, everyone has to follow these rules, literally - they'd be unable to work against them due to the effects of the realm. The rules are constructed very specifically so as to work both as defense and to keep order.
 * Those inside are NOT permitted to harm any member of the Jūsanseiza
 * Powers may NOT be used, other than those of the Triumvirate
 * Telling lies are NOT permitted
 * Anyone whom aren't associated with the Jūsanseiza will suffer at their mercy
 * Death is only permitted to opposers of the Jūsanseiza

Training Grounds
The Training Grounds are crafted so as to allow the members to train without risking exposure by the enemy, unlike the rest of the Castle - the Training Grounds have a very specific set of rules. It is the only place in the castle where it is permitted to fight, and kill the opponent.
 * A Jūsanseiza member who dies will be ressurected at their respective room exactly one hour after their death.
 * If an non-associate enters, the Jūsanseiza member will decree if they can harm him or not.

Rooms
Soon to be revealed

Council Chamber
Soon to be revealed