A harsh world survived by only those who are strong and ruthless. A world where humans are seen as nothing more than merchandise. Jisung, a human, falls to this world. Minho, a mystery, thrives in this world. How do their paths cross? What can they possibly learn through each other? They find use in each other. One for a journey, another for freedom. But that need for each other may soon turn into something more. The heart is impossible to fight against.

Tensions were already high in the palace of Brinevale Kingdom, but when the Crown Prince, Jisung is targeted by an assassin, that tension cracks. Upon stopping the assassin, he learns his own father, the king, hired the killer- and everything crumbles. In a moment of need, Jisung forces the mysterious assassin to help him escape the castle- and eventually fight his way back to the throne. Through this unique journey, trust is tested, bonds stretch, and love creates a tie impossible to break- but a tie that could destroy everything.