Shadow Disciples - Unholy Sabbath - Niten Ichi Ryu [ Cyber Samurai ] 

Niten Ichi-ryū - the union of two heavens as one, is a dual sword technique of master Musashi Miyamoto, which guaranteed a historical record of 61 duels won and no death.
Shadow Disciples is a spinoff story that focuses on shadow aspects of self and the toxic, negative traits they point towards.
When running loose, they are a true pain in the butt.
Transcended and integrated, they become great teachers and true warriors of the dark in servitude to the Masters of Light.
Music:
Mick Gordon - BFG Division ( Sunrise mOnk remix )