Hundreds of years ago, the world was ruled by one kingdom. Two twin brothers, Nightmare and Dream were next in line for the throne. After Nightmare found out that the other was to take the crown, out of anger and desperation, he performed a spell-a ritual that corrupted him. They cast Nightmare out, and Dream took the throne. But the corruption didn't stop Nightmare. He built his own kingdom, with the power and influence he had he built his own kingdom out of the cast out, the beaten, and the damned. The broken and the unruly. There was a divide, of dark and light, of good and bad. This was known to be the Kingdom of Light and the Kingdom of Darkness for years to come. 400 years later, a well-known assassin by the name of Cross breaks into the castle, getting caught. Nightmare gives the flirty bastard a second chance only for the price of one thing-to be his personal guard. Who knew that this would take him on a long journey through places he never knew existed?

Me quiero enfocar en el trama de como Nightmare poco a poco se va enamorando de Cross, viven diversas cosas que los llevaran a preocuparse uno por el otro, con diversos desafíos, pero tendrán la ayuda de sus amigos (los de Cross y otros de Nightmare) pero...quien sabe que se interpondrá en todo.