For those wondering the author does advertise this as a yuri-like story (百合香る女の子たちの友情コメディ). But it is true there is no yuri in practice (I would know, I read it until the end), just hints of it. If you're expecting some kind of romance I suggest you abandon this now. Not that there's much left.
I do think the author wanted to establish the yuri and extend the story but it's very apparent they didn't have time to. The ending itself isn't very satisfying, either. Just felt like a very incomplete series.