This book introduces that the protagonist Nizi, the son of a poor farmer from Guizhou, went to work in Guangzhou and met a cute and talkative fat man in the factory, which made him want to miss his past lover. The appearance of this fat man added a lot of excitement to his boring life. He was less colorful because he was in love with Fatty. At this moment, his ex-boyfriend called and said that he wanted to break up with him and pay him back everything he had given him before. Niezi was disheartened and promised to give him six thousand yuan. Fatty suddenly said that he wanted to go home and prepare to get married. Niezi was in trouble. At this time, he met a strange middle-aged man on the road. After the encounter, he kept appearing in his life. Later Niezi found out that the man was his biological father, but he fell in love with him. When he returned home, his ex-boyfriend suddenly Niezi appeared and told Niezi's biological father that they were lovers, which caused his biological father's kidney disease to relapse. Niezi decided to donate a kidney to his father. Unexpectedly, after donating the kidney, someone told him that the man was not his biological father. Niezi decided to throw himself into the embrace of the sea in despair. My biological father appeared again at the beach...