In the final days of a war when humanity’s extinction loomed ever closer, humankind initiated the “Personality Preservation Project,” digitizing the personalities and memories of its most outstanding soldiers and engineers to pass them on to the future.

Year 5012 AD

An alien race suddenly invaded Earth. Faced with the overwhelming military might of their weaponized “mechanical lifeforms,” humanity was forced to relocate to the Moon. To reclaim Earth, the Human Army organized a “Resistance” composed of combat-type android soldiers.

Year 11945 AD

To break the stagnant stalemate, the Human Army deployed a new type of android—combat infantry known as the “Yorha Unit.” A fierce battle raged across barren, uninhabited lands between mechanical lifeforms and androids.