Go to the root of your SD card. Create a new folder path: luma/titles/00040000001B1500/
Place the unpacked Japanese audio files inside that romfs folder. Citra will automatically prioritize these files over the default English audio when the game boots. Final Thoughts fire emblem echoes shadows of valentia undub link
Retains the Japanese voice actors (Seiyū) for full cinematic immersion. Go to the root of your SD card