Yi Ning, a member of the business elite, traveled to the Wu Dynasty in an alternate history and became a low-status son-in-law. His surname is Ning, his given name is Yi, and his courtesy name is Liheng. Because Yi Ning had dreamed of martial arts since childhood, he simply concealed his already familiar business skills in this second life, aspiring to become a hero of his generation. Unexpectedly, the morals of the world were not as simple as he had thought. After becoming Ning Yi, he was not only involved in important court cases, but the Su family he had joined was also threatened by powerful enemies...