I really loved the mangaka's style, but I'd prefer the story develops around Kan-chan and Yumi. That would've been more twisted and more interesting for me ┑( ̄Д  ̄)┍
he has his own story! it takes place probably years after this one, but he still doesn't trust himself because of how he hurt yumi. Its so sad and perfect! Renai-rubi no Tadashii Furikata. its the second story in this one. It really shows the other side of an abusive relationship. of course they arnt okay, but Kan leaving Yumi showed that he was trying to change. I like both stories :)
For me, Karino is so sooo in love with asuza, but he can´t control his twisted feelings for him. I think he used the caste game because he wanted to be with Asuza, no matter what. They are about to graduate, and maybe, that was his desperately way to stay with him before they finish school and to get introduced into society. (Sorry for my english)
I don't think it's love but lust Azusa is his plaything until graduation, he locked his target in this cast game. He let him to choose about being gangraped or being his bitch. Sometimes I really wish someone steal Azusa from him and make him regret and beg for forgiveness.
Oh, god, we're all hoping for that-- Karino can just rot in hell, for all I care. (╬ ̄皿 ̄)凸 #sorrynotsorry
Haradaaaaaaa ヾ(☆▽☆)