Wang Yue suffered a sudden backlash while practicing in the blood pool. He lost control and bit a girl from Jiangling who accidentally entered the forbidden area. The blood mark on her neck actually caused the blood emperor's mark to glow. The two were involved in the ancient underground blood river formation.
- The awakening of the Nine Yin Mysterious Veins caused changes in the celestial phenomena, alarming the Blood Tribe Elders Council and the Xuantian Sword Sect.
- When Jiang Ling'er was imprisoned in the Blood Prison, she found a bloody mandala mark on her arm.
- Wang Yue consulted ancient books and learned that the Nine Yin Mysterious Veins needed to use the "Blood Twin Technique" to break the curse
- The master of Zixia Palace visited with an ancient astrolabe, implying that the saint's destiny star and the blood emperor's star orbit were intertwined.