Remrina, inspired by Emilia, the strongest female bounty hunter, decides to become a bounty hunter herself. Teaming up with Brain Jr., an electronic lifeform, she dedicates herself to daily training and missions. She successfully tracks down Galzorg, a remnant of the Gemdahl faction seeking galactic domination, gaining an advantage in the pursuit. However, due to interference from her subordinates, Galzorg manages to escape. Shortly afterward, Galzorg acquires Baskar, a deadly assassination weapon, and devises a plan to target Remrina's life.