Heavenly Exorcism

When Taeung's shaman father vanishes, an ancient calamity breaks free from its sealed jar—and Taeung is forced to jump off a roof to avoid a horrifying fate. But death is just the beginning. Now a ghost, Taeung discovers his body has been possessed by Chachaung, the legendary Shaman King of ancient Silla. As supernatural threats close in, Taeung learns that his father belonged to Ryeong, a secret corporation of exorcists. To find his father, Taeung must join Ryeong and enter the hidden world of the occult... where menacing myths and lethal legends lurk behind every corner.

(Source: Webtoon Entertainment)