A mysterious mercenary that was temporarily in the Empire's ranks. For reasons unknown, he is able to easily master the Twin Guns "Skull Breaker" which boasted in tremendous power but it is said to shatter the bones of the wielder from just the recoil alone.
The wing-like armaments on his back are actually the magazines for the Twin Guns, and are charged with an energy body that cannot be parsed by the Empire's current technical capabilities.
While he claims himself to be just a normal human, but with godlike skills and armaments whose origins and make cannot be analyzed, he is one man with a lot of mysteries. However, as he does not cling to the power of the sealed heroes, his presence is essential and irreplaceable for the survival and continuity of the "Kagero" clan, which have been weakened significantly.