i dont rlly understand the whole "If you want to keep your data, I recommend making a copy of it somewhere so you can paste it back in. Be warned that Milo might not like this in future updates." I don't rlly know how to make copies of data in games and such so if anyone ever goes through the whole keeping data, pasting it back and milo not liking it, plsplsplsplspls!!! maybe record and upload it on some platform so I could see or js tell me what happens! I'm a very curious/inquisitive person :3!!
Viewing post in Walkthrough + Endings comments
I don't know if this is the same with all the other versions of the game, as I played the PC version only, but to copy the data of your saves, you can go through the files as such:
Perfect Love folder -> Perfect Love folder -> folder labeled "game" -> folder labeled "saves". You'll then want to select all the save files from the folder (you do not need to grab the file "persistent" as it's the only file that will stay after the wipe) and copy and paste them into a separate folder outside of the game's own folders (I named mine Perfect Love Saves).
Once you go through one of the True End choices, the game will force close and all the saves will be wiped. You'll then just copy over all the saves from the folder you moved them to, back into the game's own save folder. After that, you can reload the game and view the other True End choice (the saves will delete again after that).
You might end up needing to go through all the endings again if you load up the game first before moving the saves over, as that happened to me, but you can easily skip through them quickly.