In a modern world where technology dominates, how will people cope when war breaks out? They wont. As war feuds between two countries, the effects are immediately shown as modern warfare tears the lives of there people apart. The once modern world is swiftly throw backwards through time. As the murderous leaders reign, destruction is brought upon there people in a post apocalyptic world, the only solution? Murder the King.

Park Chanyeol is an assassin. Skilled in inconspicious murder. He is the only hope of dethroning the King and saving their people from certain destruction. The only thing that he, or anybody else didnt predict? That this King has a son. Who despite his hardest attempts Chanyeol inevitably falls in love with. 

With the fate of a nation weighing on his shoulders, who will Chanyeol choose? The Kings son, Baekhyun, a pompous, spoiled brat, or the lives of millions.