Hi, thank you for playing my game!
To answer your question, there is only one ending, and the novelist always responds the same way. Basically it doesn't matter at all what you write in the text box. It's only a bit of a meta thing that you can put in your thought for roleplaying (and I can't see what you wrote anyway). This was made for a special VN jam that every word in the story script counts towards the 1000 words limit, so instead of letting the player pick a response from predefined options like what you normally have in an IF/VN, I wanted to do something different to bypass the restriction.