It tells the legendary story of Lin Yu, a modern young man who traveled to the world of "Know or Not" and possessed a descendant of the Sheng family, who was actually the emperor's exiled prince. He relied on the sign-in system and modern thinking to navigate the turbulent court and arena of the Northern Song Dynasty. Lin Yu is brave and resourceful. After getting acquainted with women such as Sheng Minglan, Yu Yanran and Zhang, he supported each other with them. He went through many tests such as solving mysteries of his life, rising to prominence, getting involved in court dangers, and seizing the throne, and finally ascended to the throne. He then reformed the government, developed the economy, and fought against foreign enemies, creating a prosperous era and growing into a British master.
