Running the game in (Arch) Linux was a pain, turns out the command line doesn't take kindly to apostrophes, so I wasn't able to run the .py and .sh files properly without renaming them (and also another file in the lib/linux-x86_64 folder that had the common suspect, an apostrophe). Took a few troubleshooting but at least I finally had it running.
Edit: Okay so it might have been my fault since I don't even think you were supposed to run it on the command line, you just have to go to the Yuki's-4P-linux/lib/ directory, go to one of the Linux folders and run the executable with the game name from there so... In my defence I'm a Linux noob and it wasn't obvious lol