The world has been stripped of color, leaving only black and white.
In this ashes-like era, the Seven Deadly Sins were born from the shadow of the human heart and turned into immortal kings of concepts, ruling the desperate land. Humanity huddles in the last city, lingering under the protection of the Adventurer's Guild, gradually losing its emotional warmth.
Xu Ming, an ordinary high school student, lives a double life between the "crane tail" of the school and the lone ranger "Shadow Eater" in the underground city. The only thing special about him is a simple sword - it can swallow up emotions, but he doesn't know the cost.
When a conspiracy called "Laziness" enveloped the city in an attempt to extinguish the last hope of the younger generation, Xu Ming had no choice but to form the "Ashes Team" with three companions who each had their own unique skills. They are forced to face the betrayal within the guild, the twisted rules of the Seven Deadly Sins, and a cruel truth: pure strength cannot save the world, and color comes from the heart.
The young man holds a sword that can swallow up emotions, but he must learn to understand, reconcile and guide emotions. Starting from a faint red light of courage, he and his partners will be tempered in betrayal and sacrifice, find answers in the ruins of history, and finally embark on an unprecedented path - not to become a brave man who slays the evil dragon, but to become a bridge that brings together the light of hundreds of millions of people and re-paints the world.
This is the story of how the mind defines color for the world.
It is a story of how to protect that seemingly fragile hope in absolute despair.
It was written by a young man, his sword, and all the people who were unwilling to give up color - an epic of the world.