The Anti-Observer Armaments (対観測者用兵装 Tai-Kansokushayō Heisō, localized as Anti-Observer Weapon) were created by humans in ancient times. It is called by this name because it’s able to neutralize the Event Interferences of Observers, and also possesses the Immortal Breaker, power capable of killing those outside of reason.

The following Anti-Observer Armaments are known:

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