People had been told to never mess with the Jung couple for they will be at their wits' ends. The couple wasn't interested in killing because death meant peace to all sufferings. They are the rulers of the sin world. They were the so called Satans on Earth who had created hell for those who tried to go against them. Being an undercover police, Yoongi was given that one job to collect every single evidence. He also decided to take on the job as he wanted to seek revenge. But will he be able to do so? Or Would he wish for death instead?