The only couples I care to see are nononon x yumimi, kanae x haruka and mahiro x mahiru. These couples are the most interesting to me.
Weirdly, same for me (almost). I also like Ayano and Miyoshi but I WISH they'd have some progress. I say weirdly because MahiMahi used to just annoy me. But the most recent chapter has actually made me stop and consider the pairing. How their differences are beginning to show and how one of them (it's sad but I genuinely never bothered to tell them apart before now, I'll have to check that- the one with the pink hair) was torn on the other letting down her hair, I think because she was both worried by and attracted to the differences.
And Haruka/Kanae would be my number one FAVORITE (or at least sharing the spot with Nononon and Yumimi) if it weren't for the way their whole 'confession' moment was handled. Entirely offscreen. To this day though I still hope maybe Kanae assumed Haruka meant it as loving her as a friend and MAYBE we'll get to see an ACTUAL confession sometime in the future. I also love their dynamic- pretty and popular Haruka ends up being the clinger to the more plain and previously friendless Kanae.
Nononon and Yumimi...I can't even put it into words, I just ADORE this pairing. I especially love when we see that Yumimi is pretty damn weak for Nononon herself.