In Monica, an island city built on the ruins of a mysterious alien race, a plague called "Black Whisper" suddenly struck the slums. Those infected were bound to die, and only children under the age of twelve were likely to survive.
The orphan Carter Clark survived the plague, but fate turned him into an orphan and a liar. The threat of hunger, cold and the noose made him the most promising among the young thieves in Monica City. However, after almost making a big mistake, he was sold to a blind priest named "Chain". The gifted thief taught his skills to a carefully selected group of orphans, forming a group of thieves called the "Gentlemen of Scoundrels."
Under the guidance of "Chain", Carter gradually became the leader of the thieves group, and he never tired of performing shocking scams one after another. Soon, he became famous and became the "thorn" in the city of Monica. No wealthy noble could escape his scheme. Even the most feared leader in the gang, Guidado, was deceived by them. However, there is someone in the shadows who is more powerful and more ambitious than Carter imagined.
Known as the Gray King, he is slowly killing Boss Guidardo's most trusted men and using Carter to try to take control of Monica's underworld. A bloody coup is brewing that threatens everything in Carter's life, and Carter tries to fight fire with fire, defeating the Gray King in his cruel game, even as the sword of blood and death hangs above him.
Intention: to strengthen the good and eliminate evil
