In the Monga Delta washed by Tamsui River and Xindian River in Taipei, there is a traditional market with a history of 55 years, called Huannan. Wherever there are people, there are gangsters. In the Huannan Market in 1991, three men and one woman became sworn as the "Four Young Brothers of Huannan". Their love was as diverse as the market's diverse ingredients - fresh and vigorous, but also as diverse as a secret. But everyone doesn't know that the 28-year-old No. 1 youngster actually comes from 2022.