During the Yongle period of the Ming Dynasty, Lu Yinzhi, an idle young man in a bookstore in a small town in the south of the Yangtze River, originally had nothing to do with the world, but in order to save the Li family who sold tofu in the alley next door. The peaceful life came to an abrupt end. A blood-stained account book involves the shocking secret case of Emperor Jianwen's disappearance twenty years ago, as well as a secret map of the previous dynasty that could shake the country's foundation - the Map of Mountains and Seas.
In an instant, Caogang killers, Dongchang fans, and mysterious "Northern Guests" arrived one after another. The bookstore was burned down and there was a bloody storm. Lu Yinzhi was forced to escort his dying master Gu Changfeng and embarked on the dangerous road to Jiangning Mansion. On the way, he met Lin Qingyao, a descendant of Yaowang Valley who was responsible for the sect's sect and had excellent medical and poison skills. The two walked together, but they did not know that they had been involved in a huge whirlpool that swept the court and the world.
In the Jiangning Mansion, various forces are surging undercurrents, including Jin Yiwei, the King of Han, the Supervisor of Ceremonies, and former ministers of the previous dynasty...
This is an adventure about secrets, trust and sacrifice, and a legend about an ordinary young man who grows up with a sword in the torrent of the times. When all the secrets are revealed, what he wants to protect is not only the lives of the people around him, but also the future destiny of a dynasty.
