The initial backstory for Izve was that she was a labor robot from a far space society brought to a research outpost within the moon. Once the research was concluded, she was to be formatted and left behind as scrap because it was cheaper to just abandon their obsoleted tech than bring it home and dispose of it. But someone forgot to turn off the automated software maintenance task that reboots her and leaves her stranded alone with no connection to home, nothing to do, and only a faint connect to Terrestrial internet.

But maintaining VTuber kayfabe is very tedious when you're just hanging out all the time.

I just always liked robots though, robots are cool. Though the main two things that made me go "Oh my gender has to be robot" are the Polynian toyline by Daibadi and, more significantly, indie idol Tsukasa Uduki. The moment I saw her I was totally enamored. All I wanted to do was to figure out how to build my own helmet and bodysuit, but that was very difficult and it turns out I was never going to leave the house again so being a Vtuber was the better choice.