In a world isolated from society, citizens live in fear of their overlords. A few rise up and rebel but their efforts are waisted. One day, a group of rebel soldiers digging through a scrapyard discovered a capsule, contained within was a person. This person, was Advent.
About this creation
Advent had no memories of his own. He didn't even know his own name when he was found in that capsule. A drone attacked shortly after the rebels discovered him and in the midst of the battle, Advent took a rifle and took down the drone with ease. The rebels recognized Advent's potential and enlisted him into their ranks, to fight in the rebellion.
Advent is not a Toa nor matoran. He doesn't even exist in the Bionicle universe. He exists in a world where there are no colors to differentiate people. Everyone shares the same black, gray, and silver features. These people have no elemental or mask powers, they are just normal people.