Doing this breaks the AI in many ways because the entire pipeline outside of the LLM requires everything to be in English to work properly. For example, the AI won't be able to properly retrieve memories anymore, and the NPC action system stops accurately translating RP actions to game actions. The LLM will also be dumber in general because it went through English RL training. I specifically added a language check to the first user input to deter people from doing what you describe.