"Ryukyu Love Song" is set during the Zhengtong period of the Ming Dynasty. It tells the legendary story of Pan Rong, a seventh-rank official, Chen Mo, a ninth-rank clerk, and other low-level officials. In the dark era when power and traitors were in power and corruption was rampant, "Ryukyu Love Song" used their courage and determination to overthrow the corrupt, destroy the soil-breaking forces, and protect the Ming Dynasty's maritime territory.
When Pan Rong transcribed Ryukyu's ten-year account books, he discovered something suspicious: the tributes dropped sharply, but the reward money and disaster relief money doubled year after year, and the disaster reports were exactly the same. Unwilling to be perfunctory, he was determined to investigate. At the same time, Chen Mo, a scribe in Quanzhou, was forced to falsely report the wastage rate, but secretly used a wooden box with the word "" to hide evidence of corruption. The two clues echoed from the north to the south, pointing to the shocking conspiracy of Lai Shi'an, the minister of household affairs, and Cao Jixiang, the eunuch of the ceremonial department. They colluded with the Ryukyu regent Shang Xi and the Japanese pirates of the Satsuma domain to embezzle disaster relief funds and train private soldiers on Penghu Island in an attempt to separate themselves and become kings.
With the secret support of Li Su, the minister of the Sixth Section, Hu Guang, the minister of household affairs, and others, Pan Rong went south with secret orders. He experienced interception and killing on rocky beaches, the closure of Quanzhou, and torture in Tianlao, and narrowly escaped death. He and Shen Qinghe pretended to be husband and wife, and with the help of the thirty-six surnames of Fujian, Ryukyu Prime Minister Cai Xun, and Crown Prince Shangde's brother and sister, they collected four pieces of ironclad evidence: letters exchanged between Shangxi and Lai Shi'an, the roster of Penghu private soldiers, Japanese pirate smuggling bills, and arms transfer certificates.
In the end, the court thundered and closed the net, Lai Shi'an and Cao Jixiang were brought to justice, Shang De was canonized by the Ming Dynasty, and Shen Qinghe was granted the marriage to the King of Ryukyu. As a canonized envoy, Pan Rong led the navy to quell the rebellion and restore peace to the sea.