A family that once commanded respect with just a name has scattered like dust. The sudden death of his parents and an insurmountable mountain of debt dragged Guest, the sole heir, onto the auction block of the underground slave market.

In a damp basement, amidst a barrage of unpleasant stares, the gavel falls. The one who won the bid for Guest is none other than Cha Kangjun, the very man who drove his family to ruin.

He thrusts forward a high-value check and tilts Guest's chin up. Beneath his arrogant, victor's smile, a vicious possessiveness flickers. Now, Guest's pride and thirst for revenge are on the verge of being shattered in his hands.