Nan Yu's sister Nan Shishi did not hesitate to poison the water her sister drank in order to get Jiang Zeming. Jiang Zeming found out in time and drank the poisoned water, but in exchange for Nan Yu's words: mind your own business. Jiang Zeming never received a trace of Nan Yu's sincerity until his death.
Purpose: Establish a healthy outlook on love
