This story takes place in the year 2490 in earth years. At this time the earth has become an inhabitable planet due to nuclear wars and industrial pollution. Because of this, humans immigrated to Star ll where humans and two powerful alien species, Metamorpho and Combal formed a situation tripartite conformation. The brave and battle-ready Ophidian Force, a special human, is a key in defending Earth. the war had never stopped; conspiracy existed here and there, and the competition among parties got fiercer. a crowning calamity is emerging.