The inventions of world renowned scientist Juzo Kabuto are peerless. But Professor Kabuto lives with a heavy heart after his research cost the lives of his grandchildren's parents. One ominous day, Juzo Kabuto gives his eldest grandson Kouji a terrifying inheritence - a giant robot known as Mazinger Z, a machine that is the pinnacle of Juzo's legacy. This super weapon is capable of making Kouji Kabuto the most…