Shen and Xie met unexpectedly due to an investigation. Sinking means clear veins, and Xie means turbid veins. The ancestors of the Xie family were wronged and harmed by people with clear veins. Regardless of their blood differences, Shen worked together to clear the Xie family's old grievances, and the two formed a deep bond from then on.
Purpose: To distinguish between pure and turbid bloodline to break clan prejudice
