Regarding consent, it gets a lot worse before it gets better. What had been depicted so far in the manga actually hadn't bothered me, but what comes later this volume is pretty egregious, and I think it's unfair to tell people to stick with it because it gets better without warning about this.
There's a scene where she very explicitly refuses Aya. Not the usual ambiguous culture, "dame means yes", but straight up: "今日はえっちしないから" ("I don't want to have sex today"), followed by Aya forcing herself on her despite repeated denials.
Also, this became massively problematic in an entirely other way, so... might as well warn about that too.
Aya's boss, the owner of the lesbian bar, is a predator who has sex with both Aya and a middle schooler. This is portrayed completely uncritically. The actual sex isn't depicted, mind you, but even though I have a pretty high tolerance for lolicon in yuri romance this made me really squeamish. I think because there's no romance, just casual sex with minors, and also perhaps because the setting of a lesbian bar is more grounded in reality than most lolicon yuri and that makes it all the more believable and therefore yucky.