Metropolis strongest mad soldier

Metropolis strongest mad soldier , He is a Humanoid weapon, but both good and evil, good because he can protect his family for all directions, evil because he can be a sword that go west that flow a river of blood. When such a demon character returns to the city after being released from prison, facing all kinds of beauty and the bustle of the flowers, how will the gorgeous sparks rub off? The world will be unmatched!