The drama is adapted from the novel of the same name by Korean writer Kim Il-ryong. It tells the story of the Joseon king Lee Soo (played by Seo Ji-hoon) who, in order to protect his first love "Dog Shit" (played by Kong Seung-yeon), found the most powerful matchmaker group of men in Joseon, the "Flower Party" trio: ["Boss" Ma Hoon (played by Kim Min-jae) and members Ko Young-soo (played by Park Ji-hoon) and Do-joon (played by Byeon Woo-seok)], and asked them to make the lowest-ranking women in Joseon into the most noble women. The Flower Party risked their lives to commit Joseon matchmaker fraud. First, the male lead is Ma Hoon, the best male matchmaker in Joseon and the most popular man in Hanyang, who boasts a 99% marriage rate. The actor [Kim Min-jae] plays the role. The "Flower Party" boss can help all customers, whether they are male or female, old or young, high or low status, with love, marriage, divorce and remarriage. With her handsome appearance and excellent language control ability, she has the foresight to see through people's hearts like a guillotine, and she has a keener observation and persistent investigation to find the best target. [Kong Seung-yeon] plays the role of [Dog Shit], a fierce girl who is more like a man than a man. In order to survive at the bottom of the fiercely competitive market, she gave up her female attire and dressed like a man. She can do any job as long as she is paid, such as chopping wood, transporting rice, slaughtering live fish, and even mediating fights. [Seo Ji-hoon] will play the role of [Yi Soo], a pure-hearted Joseon king who fights for his first love. He worked as an ordinary blacksmith for 23 years, and overnight, regardless of his own will, he became the king. Unlike when he lived a free life, his every move was monitored by ministers and palace maids, and he recited the palace laws that he didn't know what they meant. What he couldn't stand the most was the endless offensive of the women in the palace, because he had his first love "Dog Shit" to protect. The image consultant of the "Flower Party" [Gao Yingzhu] is played by [Park Ji-hoon]. He is a hot celebrity in Hanyang City. He has outstanding fashion taste and profound knowledge of styling. He can turn any "unfavorable" image into a "favorable type". [Bian Yuxi] plays the intelligence expert [Dojun], who has perfect appearance, character, brains and knowledge. Unfortunately, his family has fallen into poverty and he has no chance of a career in politics. It happened that Ma Xun took a fancy to his boundless intelligence ability and prompted him to join the Flower Party and become active as a Flower Party intelligence officer. [Gao Yuanxi] plays the noble lady of the Yangban family, a "new woman" who is open-minded and courageous.