Alisha x Honoka is still my personal favorite ship (their whole dynamic is so fun) but I gotta give Mask the respect she deserves. She got Kao wrapped around her little finger.
Also goddamn does Kishi Torajirou just write the most realistic feeling lesbian dynamics for someone who uses he/him lol. Basically none of the many relationships in this series feel like they're based on hetero dynamics with one gender swapped, nor the completely artificial pure class S bullshit of old. I don't know if he's a he/him lesbian or if the gender is part of the pseudonym or if he just reads a whole lot of lesbian authors (I wonder if Rubyfruit Jungle has a Japanese translation) but he's clearly going far beyond his gender peers. Hell, just the bl angle alone, I know so many irl lesbians into that and I've never once seen it in yuri before this series.