One day in the future, a scientific research organization accidentally intercepted an extraterrestrial signal.
-The unknown is always full of temptations-
The Pandora's Box was finally opened, the first contact between the earth and the alien civilization Baiao.
BIO Civilization has established BIO, an organization to connect with the earth, which has brought unprecedented science and technology to mankind. The potential of mankind has been efficiently developed, mechanical assisted transformation technology has prevailed, and mankind has ushered in the most prosperous period of the earth.
-The unknown is always full of conspiracies-
BIO has developed and grown, and Baiao technology has been widely used. Under the bustling undercurrents, BIO finally couldn't help but expose its true purpose-to occupy the earth, artificial intelligence "Class A cube" suddenly Unleash war.
Unprepared, a war to defend the earth's homeland was forced to kick off.