I see a lot of comments mentioning the intro being too long, but I thought it was fine? The writing was good, and I was intrigued by the lore. One thing, I found the transition from the narrator to the player's simple dialogue style pretty jarring. As this is an RPG maker game, the gameplay was pretty bland, but I didn't mind that as the art style is great and colorful, and the intrigue was interesting enough to make me want to carry on :)
The installer was unnecessarily complicated imo, I hope you'll find a way to figure out how to have your game launch from an exe or web browser, it's easy for player to lose interest if the process to get to play is complicated (for instance my game for this jam has like 90 browser plays but only 2 windows build download lol)
All in all, yeah, it seems like your project grew way out of scope for this jam, as I'm not sure 2 additional days would've been enough to get everything done. I want to emphasize I think your stuff has a lot of potential story-wise, and it's more about getting the skills to have it told as smoothly as possible. I still enjoyed it, and I'm sure the next one you make will be even better :)