^Can't see the first image?
Edit: Fixed
Btw, aren't you assuming that the studio would choose the animate the same amount of information from each chapter? I'd say episode 1 isn't necessarily the best one to extrapolate how much the writers are going to condense the LN because the first 45 pages of the LN likely contained a lot more vital info that the reader needs to know (setting up the premise of the story) than say, chapters 16 or 17.