She's an Invader, so her accounts are kind of vaguely connected.
twitter.com
Hi! My name is Moon Jelly. I want to write music that can reach your heart. I'm a singer, composer, and artist based in Malaysia. Super active on Twitter: https://twitter.com/moonjelly0 Commissions and Links: https://moonjelly.net
www.youtube.com
This if my favorite of her old work:
e: Before she was Moon Jelly she was Manaka Umio under MyHoloTV. I swear that gen was one of the most talented in early western vtubing given where each of them ended up.
I don't know if she had a past life before Manaka but all the work she's know for is on her Moon Jelly account.