He is one of the prototypes created by the Electro Shogun as a test and proof of concept for the ultimate creation: an indestructible, Gnosis-bearing automaton. After the Shogun completed the project, she sealed his power and set him free. Driven by feelings of betrayal and a troubled past, the puppet named himself Kunikuzushi and sought revenge on the Shogun by committing mass murder against the Raiden Gokaden, the elite samurai who held the art of the Shogun's sword. Soon attracted the fatui.