Female protagonist, wife of Zhou Sui'an. Illegitimate daughter of a salt merchant from Jianghuai, raised on boats. She was nearly ruined by her elder brother's schemes and given as a concubine to an old salt official before Zhou Sui'an rescued her and married her as his wife. She is clever, worldly-wise, and skilled at manipulation, as shown when she forged an account book with a radish-carved seal to blackmail Madam Lin into mediating with Zhang Xian.