The story of the prodigal son returning was usually a story about the protagonist experiencing many setbacks and mistakes before finally realizing his mistakes and trying to correct them. In the story of the prodigal son, the protagonist is usually a repentant person who has made mistakes or done bad things, but has now realized these mistakes and decided to correct them. At the beginning of the story, the protagonist may suffer some setbacks such as losing friends, relatives or jobs, but these setbacks do not make him or her give up, but encourage him or her to work harder to correct their mistakes. In the story, the protagonist may experience various challenges and difficulties, such as learning new skills, facing new friends and enemies, changing his or her lifestyle, etc. However, he or she will eventually become a better person through these challenges. At the end, the protagonist may receive some reward or honor to show that his or her change and efforts have paid off. The story of the prodigal son was usually a positive story that encouraged people to correct their mistakes and pursue a better life.