Read manga: Exchanged Heart

manga
Summary:

"HyeonRyeong" lives inbetween the world of the living and the world of the dead because his heart got switched with "Gwi-Ho". When HyeonRyeong's village is hit with a string of mysterious murders, a powerful and mysterious shaman-girl named "GabJin" shows up. When HyeonRyeong's demonization speeds up, he and GabJin set off on a journey to find Gwi-Ho in order to turn him back into a human. (Source: Hour of Lunacy) The Red Night Inn / The Red Night Spirit / The Seal of the Red Night / The Stamp Seal of the Red Night / 붉은 밤의 각인