They were most likely filler eps. I noticed that the manga doesn't cover the original novel word for word. There are short stories from the original novel that didn't make it to the manga.
ohhh i didnt know this was originally from a novel. thank u for telling me!!
This was before the anime
Ya, they were fillers...actually there were a lot of fillers in the 2nd half, and then they rushed the ending a bit.
(I prefer the story without it tbh)
i watched the anime before reading this and im kinda surprised that certain scenes that were in the anime was not included here (if im not mistaken)? esp the scene wherein they took a test in this kinda tomb/cave-like setting in the school and katarina got lost while others panicked while trying to find her. also the scene wherein all of them went on a picnic together and had a boat race. as well as the scene wherein katarina and the others (except for maria and mary) got sucked into this magical book wherein their desires were presented and showed in the book lmao.