“Choi Si Woo is always conscious about his weight.” Until one night during his jog, he comes across an old man. In the blink of an eye, the old man covers Choi Si woo with the straw backpack he’s carrying. After opening his eyes, Choi Si Woo then finds himself in an incredibly vast abandoned Hanok (Korean traditional house). At the edge of the spacious courtyard, numerous black shadows surround them. The old man spoke to Choi Si Woo, who is confused and has no idea what is going on. Every 666 years, a festival is held to select the king of ghouls, and each ghoul family in this world possesses one ticket to participate. Choi Si woo, a half-blood human-ogre, the last descendent of an extinct ogre’s blood, has no choice but to participate as the sole survivor endowed with ogre blood, Choi Si woo’s adventure as a half-man; half-ogre begins.”