Qin Anyang, a modern man, unexpectedly travels back in time to Anwu, a kingdom suffering from a severe shortage of men. He becomes young again but is left physically weak, and the villagers mistake him for a fool who has been missing for days. When the government enforces arranged marriages, more than ten women refuse to marry him, so the officials have no choice but to marry him to Luo Qinghuan, a mysterious woman who was rescued from the banks of the Canglan River, severely injured and unconscious. Qin Anyang carefully nurses his wife back to health, unaware that she is actually the empress of a fallen kingdom and an incredibly powerful innate martial arts expert.