For ages, aliens have locked up their prisoners in humans bodies.
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.
Muruk
Guard / Thunder
Ean
Moon Do-seok
Madam Black
Mr. Blue
Jajang / Doctor
Min Gaelin
Right Paw
Left Paw
Thunder (voice)
Young Ean
