You didn't realize that incest is the death of the soul? Asuka died the day she masturbated to her mom. We have been following her living corpse and saw it get sexually assaulted by a senpai and then struggling to seduce her mom the entire time.
oof, rip
My guess at this point is that, rather than being someone who has so traumatized Asuka sexually that she’s reverting to the safety of a relationship with her own mother
Was this actually a thing people thought oO
but she still sexually harrassed her at the very least. I would say kissing gets brushed off far too easily sometimes.
It feels kind of complicated to judge whether I blame the author or the character in situations like this tbh. I'm pretty sure Asuka did like Miyuki back then so it could as easily be the author thinking "well Miyuki could tell, so it's okay" as Miyuki harassing her in universe. So I dunno how much I really condemn Miyuki for it.
And you don't develope hate or strong dislike like that for nothing.
It was most likely for cheating wasn't it? Rather than anything Miyuki did directly to Asuka.