The young prince that falls in love with the son of the castle's librarian.

Byun Baekhyun was a regular boy--until one day he awoke to seeing his own body, being carried away by strange men as they put a black bag over his slumbering body. Now he roams the earth, trying to figure out what will happen next. He thought he could help people, but he only scared them when he tried. Everyone could see his actions, but everyone could not see him. That is, until he met a boy named Park Chanyeol.

Chanyeol loves animals, but loves cats even more. Whenever he sees a stray feline on the streets, he'll immediately drop everything he was doing beforehand and make his way over to said creature; however, there's one problem. Chanyeol is allergic to cats. He can't make it within a five-foot radius without breaking out in sneezes. One day, Chanyeol's friend shows up at his door with a surprise. That surprise? Oh, just an adorable cat hybrid.