Ma Hoon, Young-soo, and Do Joon are Joseon’s most successful marriage agency called Flower Crew and also known for their handsome features. Lee Soo, a blacksmith’s son, wanted to marry his friend Gae-ttong, a wild and carefree girl, and requested Flower Crew to help him arrange the marriage. However, Ma Hoon, the leader of Flower Crew, rejected him continuously until he finally sees Lee Soo’s genuine heart for Gae-ttong and agreed to arrange their marriage. On the marriage day, Lee Soo was captured and selected as the King of Joseon all of a sudden. How will the Flower Crew handle this crisis and what will happen to Gae-ttong and Lee Soo’s marriage?