At the end of the Wanli era of the Ming Dynasty, a strange thing was happening in the death row on the outskirts of Shuntian Mansion. Locked in the darkest place of the cell was a ragged young man named Jiang Chen - in fact, although he was Jiang Chen, his soul came from the modern world five hundred years later. It turned out that he was a graduate student in the history department and also majored in cold weapon combat. When he was studying a late Ming Dynasty waist sword in the museum the night before, he was suddenly enveloped in a strange blue light from the blade. As soon as he opened his eyes, he became the son of a criminal who had "collaborated with the enemy and treason." He would be executed tomorrow...