Superhuman Judas, or Hikaru Misumi, was part of the armed robbery group Diamond Eater, but had a change of heart after being defeated by Human Satellite Earth-chan. After being released from prison, Hikaru is registered in the Superhuman Bureau, and decides to protect the activities of young people like him. However, the extreme actions of Earth-chan, who reacts to the brain waves of people calling for help, become recognized by society as absolute justice...