According to the novel, True, he's attracted to mai as his partner. He wanted to imprison and force her to love him but not so much to the point of completely violating her because most of his dark thoughts are "violent" rather than sexual so dont worry (not me saying its ok if I got no arms and legs as long as it aint rape)
According to the novel, although he's attracted to mai as his partner his dark thoughts gravitates towards "violent" approaches rather than sexual one's so dont worry about rape.
Oh God.................
I have a speculation to share and also i need a confirmation on it, but in that one panel where it shows the brother's bottom part, doesnt that mean brother is thinking of r*ping mai???