Gu Lin lost both his parents at a young age and was left to wander the streets, begging for a living. Every day, he struggled with hunger and the disdainful looks of others. He grew solitary and resilient, accustomed to going it alone. By chance, a swordsman noticed him. Seeing the longing for martial arts in the boy's eyes and his unyielding spirit, the swordsman took pity on him, admired him, and decided to make him his disciple. The swordsman had made many enemies during his younger days roaming the martial world. To protect Gu Lin from being dragged into the conflict, he decided to draw the enemies away by himself. Gu Lin asked everywhere about his master's whereabouts and finally found him gravely wounded. As his master lay on the verge of death, he gripped Gu Lin's hand and told him not to seek revenge for his sake, but to live well. Overcome with grief, Gu Lin buried his master and secretly vowed to avenge him.
To find his master's killer, Gu Lin set out alone into the martial world. Along the way, he righted wrongs and made the acquaintance of many heroes, from whom he learned a few clues about the enemy. He honed his swordsmanship and grew stronger, making thorough preparations for revenge. After tireless effort, Gu Lin finally found the person who had killed his master. His enemy commanded a vast force, with countless experts at his side, but Gu Lin was undaunted. Relying on his superb swordsmanship and iron will, he fought his enemy in a breathtaking showdown. In the end, Gu Lin used every skill at his disposal to kill his enemy with his own hands and avenge his master. Word of Gu Lin's revenge spread quickly throughout the martial world. People were impressed by his loyalty and formidable skill, and hailed him as the "Sword God." His name became a legend in the martial world.