Hakumen

Summary
One of the six heroes, Hakumen is a samurai-like cyborg wielding a sword as tall as he is and wearing a mask that completely hides his face. After the defeat of the Black Beast Hakumen attempted to warn the people that they needed to "repent for their sins" lest the Black Beast return. Unhappy about having the finger pointed at them, the people trapped him in the "Edge" of the Boundary for ninety years until he was finally released by Kokonoe to serve her own agenda. He has since become Kokonoe's unwilling test-subject, often finding his battles interrupted by her much to his agitation. During his journey, he has also shown tremendous respect towards Bang, and his unyielding spirit, something truly out-of-character for Hakumen. Hakumen often says that his sword will purify the world of sin and vanquish that which is evil. In truth, Hakumen is Jin wearing the Susano'o unit, having traveled back in time via the Boundary. He now possesses the ability to generate seemingly indefinite amounts of energy at will, and his sword is apparently capable of killing characters that otherwise could not be killed or would simply regenerate (i.e. Ragna and ν-13). In the first war of magic, Hakumen acted as the leader.