The WN is on Zetro, but those are a bit rough.
The LN is officially translated into English, but if you sail the seas you should find all 3 of the translated novels. I really can't say more.
And by drawn out, I do mean this bit with Hannah. Yes, the LN did add to it from the WN, but it was needed. It was only about half the chapter. We are at the end of chapter 16 in the LN, chapter 18 is Faust returning to the castle. The arc is fine, the pacing for the arc here is not.
Faust is often not the viewpoint of chapters in the novels. Sure, he is often on the minds of the characters, and his actions are generally bandied about. The second princess is the viewpoint we get the second most often. Zabine is probably third, though the rest of the Anhalt royal family and a character we haven't met yet gets quite a few.
People would be less vocal if we were given chapters at a much higher rate. It feels like it is taking forever because the release between chapters is awful. I'm a fan of the WN and LN, the translation from novel to manga has been rough.
I'm still not sure exactly why the mangaka has changed what they have.