BIK-WAN intends to give a pair of shoes to CHING-YI as a gift, but she sees BAI-YUET teaching CHING-YI how to make a vinegar starter and becomes very jealous. TAI-KUNG tells his men to take some kids back to the capital to serve KAU CHIN SHUI. Having learned of this, YING MING releases the kids, and even informs KAI CHUN about what he just heard. SUM-YAN and CHOI-TSZ not only have someone add the Wushi powder in CHIN SHEUNG's food, but also purposely indicate that she suffers from a memory disorder. Because of their delay in delivering the tribute vinegar to the emperor, Sum Cho Vinegar is disqualified from sending tribute vinegar anymore. Ever since then, the business of Sum Cho Vinegar has taken a nosedive, resulting in economic hardship of CHIN's family, so CHIN CHONG and his son have to find new customers separately……