Inuyashiki Last Hero

Ichiro Inuyashiki was a boring office worker living a life shunned by his family and coworkers. One night, a UFO crashed into him, and his body was rebuilt into a powerful robot. A high school student named Hiro Shishigami was also involved in the same accident, and he begins to use his new powers to enable his darkest impulses. Is man's true nature good or evil?