After going through your Shield Hero and Konosuba games to write walkthroughs and fix problems, I'm thinking of trying to help you with this one, OK? Give me some time to look at it, and I'll let you know. But unlike the others, I'm not familiar with any Reiko anime/manga, so is this completely original?
Viewing post in Reiko: Legend of the Blossoming Shrine Maiden RPG comments
Besides the text issues - yes, English is not your first language - I think you might be able to fix the difficulties with the fox as a follower with this plugin:
https://forums.rpgmakerweb.com/index.php?threads/follower-and-battle-member-opti...
or if that one in the first post doesn't do what you want, several other ones are mentioned in later pages that are more recent.
I'll email you a text file soon with the suggested edits to the messages text, and other stuff.