tbh

I liked the brother at first since I found his relationship with his sister cute but now I'm getting annoyed by him but I also tot of something else it's just a theory tho so like the brother thinks of his sister as someone "special"? or someone near special to him so he's being reluctant to kill her in exchange for power by ignoring her and still acting the same way and even colder but then i had a mother tot its basically the opposite he's being colder so that he wont feel anything when he kills her but that wont do cause that will make himself lose interest in sister because that means he doesn't think of her as someone special which means he might kill sister for no reason and there will be no gain and fail to get the power in exchange for her life.