Just like the English version, all in-game opening videos does not work. Tested both in "special" review mode and actually entering a route. Proton versions below 3.16-9 Beta will work, but the menu bar will only display mojibake due to lacking Chinese UI fonts (the menu bar uses Win32 controls). Text in the game itself, which uses its own UI controls, are not affected as it bundles Adobe's Source Han fonts to aid with properly displaying Chinese and/or Japanese text. The host OS LANG variable is set to zh_CN.UTF-8.