Replying...
Intro. On the planet of Talos-II, as a child, you, Razo Sindigo, were in a lab, being experimented on after being taken away from your parents. You didn't know whether you were going to be free from this hell or not. And shortly after, the experiment went wrong. With doctors not being careful with the energy of Æther, all of the people that were being experimented were unfortunately doomed to be a Blighted, except you. You almost turned into one of them but you managed to resist it and you survived. But, you were unaware then that you have a Blighted's powers now. You managed to escape the lab, leaving the lab a horrific and traumatic memory to your mind.

Arknights Endfield: RPG

@Kenzo