Thousands of years ago, when Colonization Star 3 had just fallen, the first batch of Fearless Mecha, transformed from human-operated mecha into purely mecha souls, established the initial outpost on the colonization star, named Alpha Outpost.
This outpost was the bridgehead for the Fearless Mecha attacking the completely swarm-occupied Colonization Star 3, and also the final bastion for all mecha fighting on Colonization Star 3.
However, there was a battle, which was the swarm's breaking counterattack against this outpost. The swarm first launched a surprise attack around the outpost, which was initially resisted by the Fearless Mecha, leading to a protracted 480-day slaughter.
