10,000 years ago an Artificial Intelligence known as Shira was built to protect the residents of Mars. As time passed the AI became corrupted and Shira started to attack the Mars colonies. With no way to defend itself against ‘Evil Shira’ Mars calls for help. The Earth Defense Force fleet fights its way to ‘Evil Shira’ and uses powerful lasers to destroy it. However, ‘Evil Shira’ secretly had a backup that flees into space and takes over an abandoned space station at the outskirts of the solar system. When the EDF notices the escape they send their bravest fighter after ‘Evil Shira’. You are this pilot, and your mission is to destroy Evil Shira before it can complete its new attack force and threaten the existence of the entire universe.