#badly described plot

This anime really said, what if we did problematic age gap yuri but the age gap is like both 2 years and 8000 years but it's the same person and what if it's polyamorous but 2 of them are the same person. and what if one of them dedicated her life to finding the other again and then the other one turned around and did the exact same thing. oh and also there's Hatsune Miku and a femboy catmaid streamer for fun.