The Mu Empire secretly established the Imperial Order to overcome the situation unfavorable to the attacks of the Kundun forces.
An orphan boy is kidnapped and subjected to severe training.
Fisher, who had a strong gaze, passed the severe Imperial Order training,
Over the course of training, he eventually loses his ego and they become a loyal servant of the Mu Empire.
Fisher, designated as the Imperial Order-Gun Crasher, is ordered to annihilate the monsters as his first mission and heads to Elveland.