Oh this is super interesting! Do you have an idea of why they are immortal? And like, do they have a goal of some sort as the last human on Earth?
still in progress so i dont quite have a reason their immortal just know that there trying to find meaning to existence? So im not 100% sure i litterally just thought about this so its very loose lol. Perhaps the goal is to collect old artifacts from people's lives? Or perhaps they will be tasked to find why the world ended via exploring?