As a legendary figure, Sunan has always been at the pinnacle of the secret service world that is difficult for others to reach. However, deep down in his heart, he was tired of this life of iron blood and gunpowder smoke, and chose to return to the prosperous city and live an ordinary life. What he didn't expect was that his mentor's daughter would come to his door. She was not only a junior sister from his sect, but also a great beauty who would dominate the country. In order to realize her wish of having a warm family as soon as possible, Sunan had to temporarily put aside her leisurely thoughts and devote herself to working quietly in the city.
