The demo's ending isn't really the full game's ending, as the full project stretches beyond the plot, but I am glad that the demo gives a feel of completion regardless! :D
Since it's really up to the player if MC can speak/understand other languages or not, I didn't want to add subtitles on-screen. That said, as in the other two routes the translation can be found in the codex section of the game (that little notebook icon in the upper left corner of the screen). It unlocks after a notification "Codex: Glossary" pops up on the screen. I hope that's a satisfactory compromise!