Jin, a frail but brilliant boy, has only one person left in the world—his brother, Shin. Forbidden from learning martial arts, he endures humiliation and powerlessness until fate grants him a secret opportunity. To protect Shin from the shadows, Jin will do whatever it takes—even if it means walking a hidden path of strength, deception, and power. His journey, born from loyalty and vengeance, will one day shake the world itself.
