These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Grim Grimoire
Alternative Character Interpretation: Does Advocat save Lillet (by asking Grimlet to kill her last, knowing she'll go back in time) because he simply wants to retain the chance to get Gammel's soul, or does he actually feel some duty as a teacher? Does he actually expect to get Gammel's soul at all, or does he just enjoy working with him? Or is it a trick to get the chance to get the student's souls? (We never see him successfully get Gammel's soul on any iteration, but he does manage to get students into contracts with him twice.)
Amoretta's Heroic Sacrifices in 3rd and 4th loops against Grimmlet, which both have her giving a good "World of Cardboard" Speech (different motives for both). Something from this that adds to the above is that Amorretta giving her live to incinerate him doesn't piss off Grimmlet nearly as much as Lillet scamming him.