Murakumo Unit

The Murakumo Units are special type of Nox Nyctores that were created after the Dark War as Anti-Sankishin Core Units. Their original purpose are as Boundary Interface Prime Field Devices used in order to explore the other side of the Boundary, since humans can't survive on the other side. When the original prime field device was sent to the heart of the Boundary, it gained a soul but also became the Eye of the Azure. The humans feared this, so they tried to eliminate if, but failed doing so. They then decided to seal it away in the deepest part of the Boundary. The humans then decided to create copies of the original prime field device to try and harness the power of the Azure. As soon as one returned from the Boundary, its emotions would be sealed, turning it into a weapon that can be controlled. As of now only 13 have been created, and only 3 are known. Only the 12th subject has been able to inherit the power of the Azure, while the 13th subject was only able to get a piece of an imitation.