What's the name of Su Yi's novel Five Rich People Come to Slums?

Nine robberies. According to the starting point and official website's query, the novel tells the story of five rich people who came to the slums just to find their former owner Su Yi, but Su Yi turned into a poor boy with no ability in his new life. After the five richest people learned about it, they began to cultivate Su Yi for a long time. Immortality of Nine Robbers is a fantasy novel written by Rukawa Kaede 1 1 Japan.