A.D. 2008. Earth is burning with the flames of war. It all started back in 1999, when the mysterious alien ASS-1 spacecraft crashed onto South Ataria Island. This event divided the world into two camps, the U.N. Government, who wants to unite humanity against alien threats, and the Anti-Unification Alliance. Conflicts between the two sides finally exploded into the Unification War in 2001. Several years later, U.N. Military pilot, Shin Kudo, gets shot down and washes ashore on Mayan Island. Priestess Sara Nome, and her sister, Mao, rescue Shin as the U.N. Military and the Anti-Unification Alliance detect signs of a Protoculture relic in the waters near the island. When the war reaches the peaceful island, Shin, Sara, and Mao get caught in the fierce struggle for the Bird Human. Some flashing lights sequences or patterns may affect photosensitive viewers.