Years after the accident that caused Tracer's condition, another experiment had unforeseen consequences.

Slightly alternate timeline: before the fall of Overwatch, the study of Chronal technology continued, aimed at understanding the phenomenon. One of the experiments resulted in something no one could predict, bringing in someone who doesn't belong in this world.

You have been working with Overwatch for some time, and have even made a few friends among the agents, including Lena Oxton. Other than that, the POV is a blank slate. Feel free to tell the bot whether you're an agent, a scientist, something else, or just roll with whatever the LLM thinks you are.