Kwong Wan Transport Co. is one of the oldest shipping companies in Guangzhou. It is managed by MAU’s son, HIN. He works for years to keep the company in good business. HIN’s only son, CHI, is a spoiled young man. He is kindhearted but he likes to play and spend. HING used to be HIN’s servant maid. She is smart and hardworking, so MAU teaches her to be HIN’s assistant. HIN’s wife, YUNG, hates HING and thinks that HIN is having an affair with her. HEI’s family collects and cleans up manure for living. Although she comes from a poor family, she is an optimistic person. She is upright, too, always takes up the cudgels for the weak. CHI always comes home late and uses HEI’s manure buckets to climb up the wall. He often knocks over the buckets and she has to clean up later, so HEI dislikes him. On MAU’s birthday, YUNG’s brother, SAM’s son, dies from a drowning accident……