I decided to download the demo of the second chapter in advance so as not to worry about it later, as I realized, I need to transfer the files from the folder of chapter 2 to the folder of chapter 1, but the problem is that the instructions there are in Japanese, and this is already the edge for me in understanding foreign languages. Of course, I can use a translator to translate these instructions, but wouldn't it be easier to put the instructions in English along with the instructions in Japanese? Anyway, how do I transfer the files of the second chapter to the main game/first chapter?
Apologies, that "demo" isn't a demo: I've been using the "demo" functionality on Itch to make sure anyone could download official translations (Japanese in this case). However, it's caused a lot of confusion, and realistically no one is going to need to download the translation unless they've bought the game to begin with, so I'll probably relocate that to the list of game files before too long here.
I should further clarify that the games don't install "on top" of each other: the TRANSLATIONS do, but each game is stand-alone. Only the datacrystal.js file is copied over to potentially unlock some extra scenes, but that's optional.