When the resources of of oil have run dry, the people of Krishna start using their inner strength to generate energy. However, 25-year-old Arrow hasn't been able to develop the ability, so he's known as an "Un-sorcerer." One day, when Arrow meets his old friends, King Hozuru and Queen Shigune, and they share the news that a neighboring country has invaded their country with an army of Golem (robots) led by their old friend Zess. As Hozuru shows Arrow the big Golem that he uncovered recently, but hasn't been able to operate, the city comes under attack by Athens' army. At the same time Arrow accidently stumbles into the command center of the broken Golem's brain and it mysteriously powers up!
Meanwhile, Arrow's home of Krishna is also being invaded by Athens. Why can Arrow now operate the Golem and why is Zess attacking his old friends?
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