During World War II, robotics expert Professor Koga was assigned by the Japanese military to create robotic soldiers, which would be turned loose against the allies. That is, until he got word that his son, Tsurugi Ryuusei, had been killed in battle. He then washed his hands clean of the whole thing, locks away the prototype, and takes the plans with him. Four years later, Makoto Dolbara, A former colleague of Professor Koga, becomes leader of an organization called the Neross Empire. (imdb)