Saurem, the super-treasure inquirer who shook the bounty hunters in space, was once captured by fighting Emilia on a remote star. The neck was researched and kept under scrutiny in a facility to develop a vaccine to save people, but one day it was robbed by someone. On the other hand, Emilia spends her days hunting down and catching the bounty head with her partner, the electronic life form Brain. One day, a man called Itachi, an information store, appears in front of Emilia and tells him about the robbery of Saurem. If you catch those who robbed Saurem, the bounty is also Gappori.