This young man cares about his childhood friend Ando and his mother more than anyone, but is completely indifferent to anyone else. Just like Inuyashiki, Shishigami got a mechanical body after being involved in the same UFO accident, but unlike Inuyashiki, he uses his powers to commit crimes in order to feel alive.

Spoiler

In the end he self destructs himself to change the trajectory of the asteroid that was about to hit the earth and destroy it.