The mundane walls of a high school hide a brutal reality. Every day, the weak endure humiliation, their lives a cycle of beatings and unspoken threats. But beneath the veneer of ordinary society, an ancient world of power stirs, its existence a closely guarded secret. Whispers of the Murim circulate among those in the know—a clandestine society of martial artists, each bound by secret techniques and warring clans. Its deadly conflicts spill into the shadows, a forgotten history ready to drag the unwitting into its brutal grip.

Enter Shi-Woon, a bullied student, desperate for any shred of strength. His prayers seem answered by the arrival of a new, seemingly shiftless teacher, an enigma who hides a fearsome past. This master of unmatched skill, known only in legend as the "Nine-Arts Dragon," reluctantly becomes his mentor. But as Shi-Woon's raw talent awakens, he uncovers not just a path to strength, but a tangled web of betrayal and escalating danger within the Murim itself. Can a naive student survive when drawn into a hidden manhwa reality, where every lesson comes at the cost of his very life?

Also known as: The Breaker, 브레이커.