In order to retire from the world, the gold-medal assassin Hong Xiao disguised herself as a rude village woman and supported Shen Qinghuai, her husband who she regarded as a weak scholar, by killing pigs and secretly accepting orders. However, Shen Qinghuai is actually the "Lone Boat" at the top of the list of killers. During the day, he plays the role of a bloody and clingy scholar, but at night, he wears a mask to steal his wife's business, protecting her and increasing the family's income. Because Hongxiao mistakenly believed that Shen Qinghuai had cheated on her, the relationship between the two was delicate. Coinciding with the high-stakes bounty mission of the Chu Palace, the couple met in a narrow way in the secret room competition. During the fierce fight, Hong Xiao relied on details and intuition to instantly recognize that it was her husband. After the truth came to light, the two men used their swords to break out of the siege. Since then, the world has been together, and they have become the "male and female evil spirits" of Xiaoyao.
