The Inhabitants of the Star are attacking Humans on the planet Tokinea, for polluting it with a machine civilaization. Humans who have only survived by science, wage war on the Inhabitants of the Star and have created "Demon Gods", powerful weapons, to destroy the Inhabitants of the Star. Now Yuuji and his new partner "Demon God 7", whom he named Honoka, are the Ultimate weapon to destroy the Inhabitants of the Star.