Ask a story about a girl who was sacrificed to a monster and became its bride.

I had a dream last night. I think I've seen it somewhere. I'll check it online! I also dreamed that the monster's grandmother was not a big boss, but a giant spider. Then I felt that the girl was not suitable, as if she was going to eat it because of some lucky draw, but the monster always protected her. Although she wears a mask, the girl is not afraid of monsters at all. This is a true story, because I really feel familiar with it?