It may not matter whether or not you download the custom fix or the regular. Pretty sure I just downloaded the regular version. You'll need these -- RPG-FIles are the thumbnail CGs for the sex events, and the missing audio files are here in audio.rar. The thumbnail CGs can be just dropped into your pictures folder, it doesn't need to be the CG folder specifically I think. The audio files should be pretty obvious where to put 'em.
This other object here is a potential fix for the auto battle glitch, but don't really count on it just in case. Save regularly. You can use it or not, it goes into the plugin folder.
Addition as of September: Uncensored Nyaika! Just put this in your Busts folder.
Everyone who sees this, please rejoice that you're not doing the crazy things people on Steam are doing to prevent the audio errors.
Linked post to guide for the game. (Thank you for so much hard work, FruitSmoothie!)
https://f95zone.to/threads/home-and-dungeon-final-manufacture.151652/page-9#post-10267838