It has been five decades past since the beginning of a new era in a steampunk-inspired world where a group of nobles (who were all given complete authority by the Seven Engineers that founded the nation) terrorizes the local population by massively deploying automatons called 'Warrior Robots'. Nobody could stop them due to their obviously inherent supermachine strength/speed and thus the people have suffered for a long time under the nobles' oppressive rule. Well, that is the reality until a kind-hearted and brilliant mechanical engineer called Professor Genios and his son, Zeo with his very SPECIAL hand comes into the picture.