Whether it is meant to be accurate or not, you A) label this as being for Edo Era Japan, a real time and place, and B) have one half of your book specifically cordoned off as fiction. These two things, taken together with no other disclaimer, present the other half as being nonfiction about said time and place.
Also, I motioned towards this before, but to say it more plainly - this is something you clearly and openly copied from a different source, and are now selling for money, despite it just being a re-organization of material from someone else's tool. This not okay and could be illegal!
I am not a lawyer, but, you are selling something from Google without their permission. Even if it was edited, the baseline material - as you've said - is taken from Bard AI, and that itself may be taking training data from copyrighted material (which it would then potentially spit out verbatim every so often, something that is more likely over 200+ pages than a single prompt). If I were you, I would not sell a supplement like this without something signed and stamped confirming that I wouldn't be obliterated in court over it, by Google or by anyone Google might have taken training data from.
If you want to share a big collection of AI responses with people because you think they'd be a useful resource, then that is your prerogative, but I would think twice before charging money for them. Like I said previously, I don't think it's worth it to buy a collection of prompts when you can just go use Bard AI yourself - and, by extension, I don't think it's worth the massive legal risk to get a bit of money from people interested in such a thing.