I ship her with almost everyone she has deep connection with but I especially ship her with Takaomi, since they have this deep involvement with each other, how Mafuyu became a delinquent and all and how Mafuyu could actually really read and comfort Takaomi is one of the best thing I really like about them. Brother and sister relationship hmm I don't think that's how it is, cause Izumi sensei actually really give us hints that they are aware of each other as a romantic interest. Blushing and being so well idk dude I mean if you read the whole chapters you just really notice it, I mean Shibuya notice it lmao, he's the most perceptive guys in the manga. For others like Hayasaka, dude my heart melts down for them too. I just love how Izumi sensei just made the two of them important to each other and how they want to protect ughh too many feelings, I also like ayaben and banchou too and everyone seriously. Srsly Izumi sensei stop idk who to ship this is such a lovely manga that you just really enjoy and find all of them adorable and along the way you just really cheer for all of them!! Thankyouu for the translation!! I wish I could read the ending, but been with this fandom for so long I guess I could wait or find some ways to read it. Once again this was a fun ride, I really hope it gets an anime!!