fade-in text makes the dialogue easier to read & gives a better sense of timing. i think something with the fade-in text function makes the text 'visible' before it's visible? (links are click-able before they visually appear).
the narrative is overall well-paced. i think the dialogue starts revealing more & escalating more in a way that feels realistic - it doesn't feel as if the story is rushed or that parts of the dialogue are only there to move the story along. makes for an engaging story. the first ending i got took a major turn - it was a bit confusing but i think keeping it this way is fitting with the events of the narrative. there was enough to get an idea of the ending while keeping it confusing enough to fit the character's own confusion.
the background switch is kind of subtle (which i think works) but it adds a lot to the overall mood. whenever you do add music, i think adjusting the volume at certain points of the story would also add a lot to the mood.