The court salt tax case triggered Wang Yanqing, the heir to the royal family, to go to Qingzhou for public office. Shen Zhiwei, the concubine of the Shen family, got involved in the dispute because she rescued the governor's wife. Wang Yanqing made several rescues. Rumors spread and Shen's father wanted to sacrifice his life. The daughter's concubine was opposed by her direct relatives, and her aunt set up a trap. Shen Zhiwei was almost innocent. Wang Yanqing took Shen Zhiwei in, but his promise to take a concubine was rejected. Shen Zhiwei left a blood letter and disappeared, taking away important tokens.
