Modern office worker Zhou Zheng's soul transmigrates into the Great Xia's most useless sixth prince. Framed by the fifth prince Zhou Han for desecrating his imperial sister-in-law Lady Zhen, he proves his innocence on the court and turns the tables, slaughters the imperial guards to establish his authority, recruits the swordsman Gai Yue, subsequently sweeps through the Qian family gambling house, saves the Zhen family with a salt-refining method to be enfeebled as a marquis, then under the alias Zhou Heng bloodbathes Hedong, recruits the strategist Jia Dao, turns the fifth prince's wife against him, returns to the capital to draw his sword and coerce the three excellencies, exposes his identity, and turns the tide single-handedly.