Choi Ji-hye

Gurus in the late Goryeo dynasty try to obtain a fabled, holy sword, and humans in 2022 hunt down an alien prisoner that is locked in a human's body. The two parties cross paths when a time-traveling portal opens up.

Following a brutal murder case, the police are baffled to find out that the assailant, whose body was found on the scene with the victim, had already been dead for three months. Meanwhile, journalist Jin-hee sets up a live interview with an anonymous caller claiming he is the true killer behind the mysterious murder. When the man announces three more murders will occur in the hands of the undead, Jin-hee must face the sinister forces beyond understanding.

In the 15th century, despite so many accomplishments he has made for the people, King Sejong, his biggest goal is still remaining; the invention of original letters that can be read and written by all the people. But courtiers who want to dominate the knowledge and the power, are against his will and discourage his belief. Frustrated King Sejong hears about a bonze Sinmi a phonogram expert, and secretly brings him in the palace.