It's World War II. The war is being won. But not everyone can get their happy ending.  

Kim Taehyung never could appreciate what he had received from life. Neither as a young and talented prince at the ancient Silla, nor as one of the seven deadly Sins. And it doesn't change during the WWII, either.  When Hitler's closest men find the lost box of Pandora, the situation offers him a perfect opportunity for enslaving his fellows. Although, there's something he wasn't aware of.. Pandora's box is more mighty than

Maybe we will fly together into the distance. If we wait for the right moment. Drug our sorrows away. And realize it was all a dream           

when kyungsoo's husband dies, he doesn't ever expect to see him again. when he takes matters into his own hands, fate proves him wrong.