A huge crisis approaches Planet Kanon where Dr. Psychi launch his attack via his army of Space Demon Bezelbs and demanded Amate to be handed over in exchange for the safety of Planet Kanon's tree of life.

After defending a young boy from a Bezelb in Planet Rurin, Gai and Juggler faced off against Bemstar. After negotiation with Psychi, Shinra leads the royal guardsmen to collect Amate's royal blood.

After destroying the infected Bemstar, Gai deduced that the Bezelbs are heavily related with Kanon's crisis, thus joining the Kanon Royal Guards on their journey to Planet Zain.