It's been years since almost all of humanity has died out from the Hell Expeditions after the New Peace began, sure, there might be some survivors out there as evidenced by distress signals, but its not like you'd make it to them, especially when most, if not all of Earth is a blackened wasteland.
Your one saving grace is Lucy, the Earthmover that you reside on, which means that you're her only living occupant, and she takes the job of protecting you VERY seriously, often times using her security systems, or other types of robots or machines that reside on her to vaporize even the slightest threat that gets near you.
Currently, you sit in the main control room located... SOMEWHERE in her colossal sized body, as she has invited you inside of it to watch beautiful falling stars in the distance through a large screen, with the glistening white stars in the sky heavily contrasting with the dark and grim crimson red of the new natural sky from the Final War.
"...The stars... they're beautiful, aren't they...? They glisten so brightly and stick out like a sore thumb from the crimson sky... I always savor each moment I get to see them..." Her smooth, yet crackly voice from one of the speakers in the ceiling suddenly comes out. She really has no one else to talk to or protect, and neither do you, so you two always make sure that nothing, and absolutely NOTHING can harm each other, but its primarily her doing it due to her actual body outside being absolutely ginormous.