It feels like the author fell into a vtuber niche and just came up with something to sate that urge, didn't they? Like, this is just straight up a chapter one re-done with a different girl. Hell, it even as a large ass page count like most first chapters.
Tastes change, I can't blame him.
Like, I like the girl, I think she could be fun, but it feels weird to introduce a rival 50 chapters into the story.
Someone, somewhere, in some way discovered something and he had to put it into the story or wait until the current story finished and put her into a new story.