Muv-Luv Alternative Total Eclipse

故事时间为西元2001年，人类遭到了地球外起源种（联合国称其为BETA）的侵略，人口数量不断减少，正面临灭亡的危机。为了打破这令人绝望的局面，致力于对BETA进行战斗的人型兵器「战术机」的新型开发是人类眼下的当务之急。日本帝国斯卫军中尉、卫士的黑发美少女篁唯依接到了岩谷中佐下达的特别任务，以日方技术主任身分参加「Prominence计划」，目的地是育空基地的阿拉斯加。而另一边，美利坚合众国陆军少尉、卫士的勇哉布里吉斯被指派到极北大地阿拉斯加参与开发。之后会发生什么样的事呢，他们的命运又会如何？

1973年、地球に襲来した異星起源種「BETA」によって引き起こされた戦争は、人類を滅亡の淵へと追いやった。圧倒的な物量で迫るBETAに対し、人類は対BETA戦、人型兵器「戦術機」を実用化して戦線に投入、世界規模の抵抗を試みた。しかし、押し寄せるBETAに劣勢を強いられた人類は、ユーラシア大陸の大半を失うことになる。以降、30年近くも攻防は続くが、BETAとの戦いに光明は見えず、人類は未だ泥沼の中でもがいていた。

2001年、極東の最前線を支える日本帝国では、次期主力戦術機の開発が問題となっていた。そこで、国連軍の「プロミネンス計画」における日米共同の戦術機改修計画が提案される。帝国斯衛軍に籍を置く篁唯依は、計画責任者の任を与えられてアラスカへと向かう。それと同じ頃、米国軍の若き衛士ユウヤ・ブリッジスもまた、アラスカの地を目指していた。

その出会いが運命を大きく変えることを、このときのふたりはまだ知らずに――。

滅亡の危機に瀕した地球を舞台に、対"BETA"戦の要である人型兵器"戦術機"の新型開発をめぐる、熱き人間たちのドラマを描いたロボット・アクション作品！

Since 1973, an invasion of aliens upon Earth known as BETA has driven human civilization to destruction. In order to defend themselves from this enormous mass of enemy force, mankind has developed large humanoid arms called Tactical Surface Fighters and deployed them to its defense lines through out the world. However, its efforts could only slow down the impending defeat, and mankind has been forced to abandon the major areas of the Eurasian Continent. For 30 years, they have been caught in an endless war against BETA without any hopes of victory.

Now in 2001, Imperial Japan faces difficulties in the development of the next-generation of Tactical Surface Fighters (TSF) as it defends the front lines of the Far East. The UN has proposed a joint development program between Imperial Japan and the United States as a part of its TSF international mutual development unit, the Prominence Project.

Yui Takamura (a surface pilot of the Imperial Royal Guards of Japan) is given the responsibility of the project and sets off to Alaska. Meanwhile, Yuya Bridges, also a surface pilot of the US Army, heads to the same destination.

They never had any idea just how drastically their encounter would change their fates.

This story of internal dilemma takes place during the development of the new Tactical Surface Fighters, the most crucial and effective weapons against BETA. And this time, the stakes are much higher than a handful of lives and our sanity.

All we can do is fight.

(Source: Muv-Luv Total Eclipse Official English Website, edited)