Opening Monologue Voiced in Switch Version

I've been playing through the Switch version and one thing I immediately noticed is that they bothered to add [voice acting to Keiichi's opening monologue in Onikakushi](https://youtu.be/-Ez_pjkxpo0?t=88). I thought this was a nice touch and considering you've added content from the Switch version before, could it be possible to integrate this into an update for the patch? I'm sure many would appreciate it.

The issue references adding voice acting from the Switch version to the patch. First, locate the existing audio assets and the script for Onikakushi's opening monologue. Check how audio is integrated in the codebase, likely in a directory for voice files or script definitions. Determine the format and placement needed, then test by adding the new audio file and verifying it triggers correctly in-game.

Scritto dal modello di indicizzazione a partire dal testo della issue.