Ma Hoon, Young-soo, and Do Joon are Joseon's most successful marriage agency, the Flower Crew, and their 90 percent success rate has given them local fame despite the fact that, unusually, they are all men. Young-soo has impeccable taste in clothes and other wedding accoutrements and Do Joon is an information broker who learns every rumor, but the biggest contributor to their success is Ma Hoon's skills of observation and thorough research into prospective spouses. A young blacksmith named Soo asks them to send a formal marriage proposal to Gae-ttong, the resourceful street girl who has won his heart. Even though their station as commoners means they don't need a formal intermediary, Soo insists because he loves and respects Gae-ttong so much. Gae-ttong is more interested in finding her missing brother, from whom she was separated when they were children, but she agrees to marry Soo because she and Soo have always supported and been kind to one another. Unbeknownst to Soo, he is really a younger son of the now-dying King of Joseon, sent away so he could have a normal life. When the crown prince is assassinated, one of the king's councilors has Soo kidnapped and brought to the palace on what would have been his and Gae-ttong's wedding day. This makes it look like Soo abandoned his bride, leaving the Flower Crew with the wedding bills to pay and a damaged reputation. The Flower Crew gives Gae-ttong a job as their sole female employee, and she works with them to repair their business while Soo finds his way as king, and various parties investigate the crown prince's death. The season covers several plotlines:
