Ok for all those who didn't get it u didn't get it too. But here is what I think the story is. Rose (fl) has reincarnated to this world as a dukedom's princess she can see ghosts in both lives. She wants to lead a peaceful life regardless but 9 years ago her sister was taken away by some ghost so an other ghost swore loyalty to her and helps her. Present day she is in event/ball and the Second Prince of her kingdom is being poisoned and she is trying to save the prince and the prince in return will be on her debt...