달의 차임

The story takes place in Korea. One day, while in the library unexpected events unfold. Yoon Joo-Eun and her friend Cho Jung-Hee find that they had been transported back in time to ancient Korea but they arrive at two different places and are separated from each other. Now, they must do whatever they can if they wish to survive in this era. And to complicate matters further, more strange things begin to happen.