gpt
All:  Everyone in the room was utterly shocked by Otto’s explosive confession.
human
All:  They weren’t sure such a book even existed, and yet the person in possession of it had just announced himself to them all.
gpt
Subaru:  Surprise was a natural reaction, but Subaru’s shock was immeasurable because he had been so sure that he had already seen the last of that book—that both copies were burned and gone from the world.
human
Subaru:  “Wh-why did you?”
gpt
Otto:  “First, I should be clear to prevent misunderstandings.