Gu Bone

Master Xuanming, the medicine king and Gu doctor in the valley, discovered that every time he saved someone, the same soul-locking contract as his own would appear on the other person's neck. When the thirty-seventh corpse with bronze scales emerged from the ground, the festered sutures were all made by his hands - the injuries he had saved in the past three years were all substitute Gu vessels refined by his brother. The blood pool at the bottom of the Sword Burial Abyss reflects the truth: the remains of his seven-year-old brother who drowned are floating in it, with the Five Poisons knot he knitted still tied around his wrist. In order to cut off the life-changing technique, Mr. Ming shattered 306 sword bones and used the poisonous blood as a guide to refine the seventh-generation corpse Gu that had been parasitic for half a lifetime into a kin-killing blade. When bronze scales covered his heart, he finally understood his brother Qingque's last words: "Ah Ming, you are the most perfect Gu vessel for my brother."