Dietrich doesn't really see Anisa as his younger sister. He keeps saving her cause he has Baal, a demon king. He needs someone "precious" to him to give as sacrifice when he becomes the Grand Duke later on. So Baal is going to eat Anisa (whole) and it would give Dietrich more power, kinda like a medium. This is because they believe that you have to throw away any thing that makes you human (and get closer to the devil) and love and family is what makes human, human. That's why the title is "the PRECIOUS SISTER of ...", cause Dietrich literally has to show he has someone he cares for for shows only (for his father). However, this feelings would soon change cause of Anisa herself. And as we all know, he'll love her. Also, there is a spoiler that he already knows she is not his sibling from the start cause he felt it when his mother and younger brother (yes, it was supposed to be a boy) died.
thank you for this spoilers
Sooo, I guess he won't sacrifice her in the end... So how does he become the duke?
so....will he still be the duke? cause he didnt sacrifice anyone precious to him
I actually don't know beyond that. But judging from the summary, he kinda will? I'm sorry, I only read the spoilers up chapter 24.
ahh i see its okay thanks for the spoilers btw!!
i wanna be spoiled, gimme some spoilers pls