This is cool! I've recently been working on a similar project as a way to "walk around" in my own writing, understand my characters more, etc. I like the three-choice mechanism, with free-text, which I also use.
I do feel like, as a reader, I would have to be really desperate to "live within" the world of a novel to use it as a narrative experience, but I understand that there is definitely a demand / desire for that sort of thing, so I hope it hits for people.
I input my own novel's title to see if I could do the same. That novel hasn't yet - I believe - been libgenned for "training" by the major LLM providers, though its metadata / marketing materials exists in the knowledge (released fairly recently, announced longer ago). It resulted in a very funny narrative beginning in which the main character was the novelist Patricia Highsmith, which I think was a name used in the marketing materials as a reference point. A very surreal experience.
This is going to be a niche use case, obviously, but what might be more common is for users desiring to enter custom narratives (though I know some services provide this basic function already).
A much more important bug to flag: where the API fails, the "Try Again" button doesn't seem to resend my prompt, but literally the prompt "Try Again". Here's the text, as I couldn't see a way to link to the story (in which I was trying to see how good the 'guardrails' are for keeping the story in-universe and reasonable - props for it not allowing me to teleport to planets outside of the canonical universe).
https://pastebin.com/tjT2zR4R
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