To anyone asking about how canon HBR's yuri is, there is a lot more shipping than explicit couples about, but several characters are openly lesbians and in some cases there are expressed feelings.
However the game features no kisses yet and it is a slowburn, so most pairings have no made it into canon territory by this point. Not to mention that this is not a romance VN, this game is a nakige (crying game) which focuses on character development, war and trauma. It is very tragic and sad in many places, counterbalanced by irreverant comedy. It is not a yuri game, even if all romance in it is yuri.
@ActaEstFabulaMuse
In response to the uh... "paizuri" thing... Tsukasa has never said anything of the sort.
However, awakened Tsukasa has said in no uncertain terms that she is into Karerin and also wants to kiss her. The sexual tension is completely maintext between them.