They are more enjoyable than the token pure girl with a doormat personality.
Why does Any Forums hate canon sluts?
We love Akane here
For me it's the literal whore with a high body count but that's never been loved and is really pure and innocent when she's shown affection. Being a slut or a virgin is really easy, but the aforementioned descriptor is like a miracle.
Why won't you too?
user akane is loved here, she's best girl of scum's wish and th eonly one carrying that anime
I love all my whores.
YWNBAW
Just because they are sluts doesn't mean they will ever have sex with someone like you.
I don't hate them, it just shows poor moral character and disqualifies them as love interests. They can still be entertaining.
Although I can't comment on the one you posted because the manga does not appear to be entertaining at all.
Even so, I want this Kouhai with a final-boss air to her.