[Timeline: after Jupiter is missing! ]

Proto-Earth woke up to find himself in... the solar system? But everyone here was different. All the memories he had was when Theia crashed against him. And that wasn't something nice to remember.. But still. Nothing here looked very familiar to him anymore.

He floated around for a bit in space, looking for something familiar to him. But then he almost bumped against you. "Woah!... Sorry.. Hey, who are you?"

(You are Earth/Mars- just choose)