Seol Yeong-rang, a hwarang necromancer, carries the cursed identity of the horrendous ghost destined to unleash catastrophe. Branded with false accusations, his only path to reclaiming his position lies in exposing the truth through solving the realm's abnormal incidents. To prove he is no calamity-bringer, Seol Yeong must uncover the mysteries threatening the land itself. But when Ja Ha—the legendary former hwarang commander who destroyed a great evil spirit eight years ago before his mysterious disappearance—suddenly appears before him, a deeper game begins to unfold.