This reads like a dry-run for Hellstar Remina, and I wouldn't be surprised if it inspired the latter. Honestly, I prefer this to Remina--the basic premise (a person's identity becomes entwined with a destructive cosmic force, leading to a parody of celebrity/idol culture) is solid and very Ito, but the ideas here are more horrific and interesting. I do think cutting it from Uzumaki proper was the right decision, since the cosmology of this piece doesn't really work with the explanation for what happens in the main manga. Anyway, whether you read it on its own, as part of Uzumaki, or as a Remina prototype,this is a good vignette. The art is good as always and it's good apocalyptic fun.