Basically yes, you can play endlessly but the scene for living with Anna and Charlotte is an ending. During your playthroughs Josef can leave but Adrian never does, only for the endings. In regard to the language no worries.
sorry to bother you again, based on what you said, i'm assuming i can always end the game after i got 5 hearts with anna right? and if i reach the ending, can i still continue that save file?
