>>719700375
Rover is constantly moving forward to find answers; one region at a time. The characters she meets have no reason to follow her to the next region because their role is to protect the region they're in, or their role to assist Rover is done. Would I like for the other characters to return, yeah, sure. There are opportunities for Rover to return to Jinzhou or Rinascita for, I dunno, a summer event, a holiday event, or region-specific quest. The Moonglow festival was the only one so far and I would I agree with you that there should be more of these.
The story never revolved around Rover towing her giant harem to the next area because it's a story of a wandering warrior looking for answers, and we're still at the beginning of the story (yeah, no kidding, the game is technically just started). Maybe one day Rover will settle in some town like how Kenshin did, and find someone to protect. Though that said, Rover would end up going back to whatever she came from and return a few hundred years later with no memories. Phrolova called her out on it and that's a potential good story waiting to happen.