What the heck is going on? Has that whole discussion in the train completely been forgotten or what?
Kasumi needs some time to think about it, her answer will eventually come, don't worry. Right now the manga is focusing on giving her the perspective she needs to figure things out, using all sorts of characters and situations, while still leaving some space for the SoL stuff. She doesn't seem to understand romance that much, despite clearly having plenty of feelings of her own, so no wonder she hasn't responded yet given that she never had to think about it before and also doesn't have quite the same brain wiring as most people do
Has there ever been any discussion about Kasumi possibly being asexual , Demi or the like in the forums or even in the manga?
I've mentioned it on occasion. Not sure if anyone else has, but there's probably someone other than me.
I absolutely love the idea of acespec Kasumi. I'm constantly seeing things in Kasumi (and her relationship with Sakurako) and thinking "Oh that is ace as hell", and I just keep getting those vibes from her, but... In a heteronormative world, vibes only go so far when it comes to queer representation. The unfortunate result is that anything less than on-screen fucking may as well be subtext, and that poses an obvious problem in regards to the depiction of non-het aces. (Although tbf het aces don't see much rep either.)
I mean, there was a manga recently that was about explicitly acespec characters, to the extent that it felt a bit "textbook-y" to me. When it ended a significant number of people popped out of the woodwork confused and/or angry about it because it was too ambiguous for them. (Which was a shame, because for the most part people were really cool about it while it was still ongoing, asking questions and wanting to learn about different aspects of asexuality.)
(Of course, there's nothing stopping Kasumi from being ace AND having sex with Sakurako, but... I don't feel like spending all day explaining that. The allos out there that don't already know are just gonna have to trust me on that one. :P)