An RPG in which you learn Japanese using romaji characters i.e. English letters. It is set in the 1800's and is an epic adventure that will teach you about Japanese history and the language. In a matter of hours you could be speaking Japanese.
https://store.steampowered.com/app/1388720/Japanese_Romaji_Adventure/

My Gameplay:
https://youtu.be/pvywRQgEq1Y