From the screenshot i can tell you i had that on locale emulators too. Locale emulators dont work actually on every game, in fact there are several game engines that do not work when the system is not set to japanese locale, Sinistar will not work with locale emulator as well, and locale amulator has issues with japanese named files since the locale amulator does not change the encoding so japanese names in files still will be gibberish. Also whatever you used to unpack probably did not even unpack those files since it had issues with its names. Locale emulators are okay forsome VN's but RPGMaker needs you to set your system to japanese and that will be said even on DLSITE.
I already said that I checked the Zip-file and it has exactly the same files that I have unpacked, with exactly the same file names.
So no, me unpacking without switching locales didn't break anything, and none of my filenames are broken regardless. They're all in full english characters or full japanese characters, with no broken gibberish text at all.
And also no, Locale emulator works perfectly fine for both unpacking Zips and running RPGmaker games. That's why I got it and why I use it. It's never failed me.
It also works just fine for all the other Exorcist Rio games in this pack. 1/2/3/4/6. It also works just fine with all the other files in this game, with japanese characters in them, like リオ_(日焼け)通常笑顔.png for one of the tanned skin CGs or メイメイ_(左側)困り顔2.png for the tribal girl.
No, the problem here is that the game is looking for 主人公.png, and there is no file with that name in the game-folder, neither before or after unzipping it.
This is not a locale issue.
Either whoever packed the game missed some files, or whoever translated it renamed a bunch of files (but strangely not all of them) and then forgot to tell the game to look for the renamed file instead of the original.
Either way, I ran the error message through an image-to-text program, then I copy/pasted that text (in Japanese characters) over a random other image file from the game (that I duplicated, obviously) and I fixed it.
Weird part is that the image-file I used as a substitute isn't even visible on the save/load menu, which means that it doesn't even need the file that it couldn't find.
Atleast RPGmaker MV just lets you continue past missing image/music files instead of closing the whole game window whenever it encounters anything unexpected.
If only it wasn't such a horrid bitch to cheat-engine, it'd be the perfect platform.