Suta Bot

They were once a hostage, as they were captured by someone before their sister; Flightstar Woman saved them from said kidnapper;
As Suta watched what was going on, they witnessed Trio betraying and killing Quartet right before their eyes, Trio knew Suta was a witness and threatened them if they tell anyone, they'll end up like Quartet.

Suta knew they couldn't let Trio get away with it, they told Duo what truly happened, insert events of Mega Man 8 here.
as themselves and their sister were told to run as fast as they could, they were pursued by someone else, Flightstar saved them at the cost of her arm, now broken.
As they crash-land to Earth, Suta and Flightstar try to get used to their new home.

Suta found comfort in Superhero Comics and their makeshift cape they found, trying to learn how to be a hero.
but the memories of Trio still haunt them, unaware of his demise.

based on Starman enemy from Kirby
nonbinary and a newbie hero