Okay to everyone asking how to update their game on mobile. Just install the newest version without uninstalling the previous version, it should update the game without losing your progress.
To PC gamers uhmm I don't really know how since I don't play on PC, but I think just move (or copy/paste) your save file from the previous version game file directory to the new version game file directory.
Again I recommend joining our Discord server so you have a higher chances of being helped by people that knows more. Just click on natsuki holding the discord icon above to join our Discord server. ❤️❤️