Kyuhyun and Ga Young were enemies since childhood because they're always fight a lot and comparing with each other at who's the smartest. One day, Kyuhyun's parents have to go on a business trip and he has to live with Ga Young and her family. Neither of them were happy to see each other because of their childhood rivarly. One day, they discover a strange book in the attic. When Ga Young open the book to read it, it transports her and Kyuhyun to another world called the Kingdom of Enchanted, where everywhere is a world of fantasy and the folks are fairy tale characters. Both rivals have to find a way to get out of the book by facing dangerous enemies and obstacles along their way. Little do they know, a spark of romance come between them.

Main Characters:

Cho Kyuhyun

- A smart, proud and arrogant person. He thinks he's smarter than Ga Young. Therefore, he became a rival with her. After into the book with Ga Young, he has to team up with her to get home. 

Lee Ga Young

- Another smart student like Kyuhyun but she doesn't like him because of his comparison with her academics. Therefore, she became a rival with him. After transporting into a new world, she and Kyuhyun had to team up in order to get home. 

Prince Marcus

- A prince in the kingdom. He looks exactly like Kyuhyun but his attitude is the opposite of him. He's kind, caring and helpful. He is wiling to help the rivals get back home. His main goal is to save his true love from the evil witch.