A mysterious samurai group based somewhere in the east of the increasingly desolate continent.
There are many experts in the regiment who use the latest weapons and can use the "Tachi" inherited in the far east of the mainland, and even have unpredictable combat techniques and the special agent "ninja" who are good at collecting intelligence. They are considered to be on the mainland. The east has the strongest combat effectiveness.
The ninjutsu they use is "Ozuki Ryu", and Taito's moves are called "Black God One Sword", but the details are still unclear, and the origin is unknown.