(1/3) I think it would be fair to say a bit of both. It's the same overarching story, but you will find most chapters moving forward to be rewritten almost from the ground up -- paragraph by paragraph.

I wasn't satisfied with my sassy and rude main character, nor with certain elements of the story and how the world is handled. I felt certain plot twists weren't foreshadowed enough... So I'm making the correct adjustments now that I've written the entire volume 1.

(2/3) If you've read the original on RR you'll probably be fine, but you definitely have a lot of waiting since I'm releasing 1 chapter every 2-3 days for the foreseeable future. I have completed a few additional chapters on-top of what has been posted on RR, but not releasing them until I've fully rewritten things on SH.

(3/3) I wanted to leave my readers with the best content I possibly can, so I didn't want to bring on new readers on RR to a half-baked rewrite. Hope that answers your question, and I hope you enjoy the rewrite. :D

Sorry for spacing comments out, had a 500 character limit.