For the life of me, I can't remember what the title is but I suddenly want to read it. All I remember was that the story was about an mc who was purposely mean to her half-sister. At the beginning, the father was getting married to the step-mother and his pregnant lover (they called her a witch) hung herself in the attic and the corpse gave birth to the mc, causing blood to drip down from the ceiling. It was bad luck but they had to take in the child.

Woah thats a fucked up story. Even I am curious now.

Akujo Seisho..??

That seems to be it. Thanks ^.^