The three beasts of Son Goku, Sagojo, and Inohakkai, who were known as the strongest bounty hunters to hunt monsters. They stopped their activities after the incident of 80 years ago, and resumed their activities when they met a girl named Gen Xu. In this way, the four men will aim to become the heavens in order to subdue Sharamer, a cash prize of 2 trillion yen. Whereabouts of that journey and how!?