
During Chronicles 03: Rebirth though, the reason is revealed to be that because many of the BETA forms bear a resemblance to humans or have humanoid features, the general populace may fear them to be an out-of-control biological weapon developed by a rogue nation rather than alien invaders. All that mankind knows of them during Unlimited and at the start of Alternative is that they are (obviously) hostile, are carbon-based lifeforms (this was discovered when specimens were examined in Alternative 2), and do not consider humans to be living beings (this was found out through the readings of Soviet espers in Alternative 3).ĭuring MLU/A it is revealed that only soldiers and eishi that have been officially commissioned are allowed to see the true forms of the BETA, which are classified at the highest level to anyone else. Their very existence is shrouded in mystery.

They cannot fly, and the Laser and Heavy Laser-class BETA shoot down anything that does, rendering aircraft useless and making any aerial military operations much more difficult. The BETA vary greatly in size, with the smallest identified strain (Soldier-class) being around 3 meters tall, and the largest identified strains (Fort-class) at over 60 meters tall. By 2001, the world population was down to about 1 billion people. They quickly spread from their landing point, Kashgar, and proceeded to invade the Eurasian, Middle Eastern and Asian regions when they finally reached Japan in 1998, 36 million people were killed within a week. They arrived on the Moon in 1967 and, after a brief conflict with humanity's space forces, invaded Earth in 1973. Muv-Luv Unlimited and Alternative, as well as their associated side-stories, take place in alternate universes where the BETA were first spotted on Mars in 1958. The Beings of Extra Terrestrial origin which is Adversary of human race, more commonly known by the acronym BETA, are extraterrestrial lifeforms in the Unlimited/Alternative universe of the Muv-Luv series.īETA are featured in Muv-Luv Unlimited/Alternative and their related spinoff works, where they are the primary antagonistic faction against humanity's forces.
