Known issueFixUpdated · 3 replies on Steam
Suggested fix (unconfirmed): Change your Windows system locale to Japanese in the regional settings to make the game engine function.
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Source: original Steam Community discussion. Quotes are shortened; all credit goes to the posters.
No confirmed fix yet. Players suggest: Seeing that you still need to set the locale to Japan or using software are kinda weird for global version to be released.
No confirmed fix yet. Players suggest: I tried looking for the demo on the official site, but no luck.
No confirmed fix yet. Players suggest: We've now added a "How to Change the System Locale to Japanese" guide to help players resolve the issue.
No confirmed fix yet. Players suggest: Update again, it's fixed(I only tested it at prologue, Demon Queen's voice is working well now, but the change doesn't only fix one place) Enjoy!
No confirmed fix yet. Players suggest: You need to set your PC to Japan locale indefinitely because of the program used to create the game—the Japan version has mosaic censorship as a result of Japanese law, whereas the global version does not.
Suggested fix (unconfirmed): Change your system's non-Unicode administrative language to Japanese. Launch the game using the pinned announcement guide for setup instructions.
Day One Fixes