My main enjoyment for this series is the main couples. The other couples can be good or meh. I hope the last volume is full of Shiramine and Kurosawa.
After re-reading it more carefully, I really enjoyed the story between the main couple.
And now I'll try to type more to actual be able to post this because this site needs that. I first went to this manga so I could look for Yuri fanservice. So I pretty much just skipped dialogue mostly. And then I stopped reading about a few chapters in. And 2nd time reading I read it, although somewhat carelessly. I enjoyed it, although I skipped some couples if I find it boring. 3rd time reading, I read the couples I liked and the main couple more carefully and it was amazing.