Bong pal is a highschool student who can see ghosts, one day he meets the ghost of girl and they decide to help each other. But the girl has no memory of her past and wants to get her memories back. So they together embark on a journey hunting ghosts while searching for her memories. This is a comedy romance mystery thriller category, it has all the elements perfectly mixed where the first half of the series concentrates on comedy romance and when it comes to middle its romance and mystery and a slight bit of drama too. It then follows the romance thriller category. It's a very good series especially for those who like supernatural and rom-com genre.