In the twelfth year of Jiading, the Southern Song Dynasty settled in the south of the Yangtze River, surrounded by Jin, Mongolia, Xixia, and the remaining Liao Dynasty, and the mountains and rivers were in turmoil.
Ten years ago, the Lu family, a prominent family in Jiangnan who was in charge of the water transport spy line in the Southern Song Dynasty, was massacred overnight. Only the legitimate son Lu Qingyan escaped by chance and hid in the countryside, waiting to be avenged. He used the guise of being a poor scholar, but underneath his gentle appearance, he hid a forbearing city and a blood feud.
In order to find out the truth about the annihilation of his family, Lu Qingyan returned to his hometown in Huzhou, but accidentally stumbled upon the conspiracy of the Jin Kingdom secret agents and was trapped in a murderous situation. Fortunately, he was rescued by a righteous man from the Jianghu, and his identity came to light. In the past, the family was destroyed by the traitors in the DPRK and the spy network in the North because they refused to pay money and protect the country. The family feud has long been closely intertwined with the hatred of the country.
In order to avenge blood and protect his family and country, he alone stepped into Lin'an, the center of power in the Southern Song Dynasty. Above the court, the main and main war factions are fighting endlessly; in the rivers, lakes and mountains, spies from various countries are criss-crossing; on the Jianghuai border, cavalry are watching eagerly. He entered the game as a commoner, relied on his meticulous mind to navigate step by step in the whirlpool of intrigues, and survived in the cold war between various countries.
From a lonely avenger, he gradually became the person who supported half of the country's plan. He killed evil spirits, destroyed spy networks, connected countries, and defended against powerful enemies. He played a life-and-death game that was related to the survival of the world in Lin'an City, just to clear up the injustice and restore the peace of the sea and rivers in the world.