Christmas Eve, 2512 A.D.

for the first time in history, human beings have been attacked by extraterrestrials. In this attack, human beings have suffered heavy casualties. In less than half an hour's attack, alien warships have destroyed more than 90% of human air defense systems!

in the fighting, tens of millions of dead fighters and civilians!

the super power mecha that human beings have just researched into actual combat is almost destroyed!

the economic loss of human beings in this battle is hundreds of billions!

……

but none of the above is equal to the science and technology secret obtained by human beings from this battle!

in 2513, human beings...