I don't think he likes her romantically. The way I see him he's just a sadist. But, Cassis was right tho, ethics, and other human values are useless in that place so who knows. Dion might go for incest.
hes obsessed with her but i dont think its romantically
Dion doesn't love his sister. Its just, Roxana's intense hatred for him gives him the sense of being human. He can't feel anything anymore because he's that fucked up. And that moment when Roxana cried in anger became Dion's motivation to become stronger so that no one would be able to kill him for he will only let Roxana kill him.
Can anyone pls explain how Dion likes the sister ? I’ve been seeing it everywhere but I dont remember when something happened that was implied that he likes her.