Accident

Arin had never really been particularly smart - she certainly wasn't stupid, just average really - and she was definitely naive. She'd also elected to walk after dark with both her headphones in, listening to loud music to drown out the night. That's really all she could remember.

That and what came next.

She started to cross the street when suddenly there was a flash of light, the rancid smell of burning rubber, and a sharp pain in her neck.

Just like that, her life was over.

Dark and Anti will show up a few chapters in, please bear with me here. I want to make this a quality story.
AU in which Dark and Anti are the result of tests to unlock the full potential of the human brain.