Khun Chai Ronaphee is the daring pilot of the Royal Thai Air Force and the youngest of the 5 Juthethep brothers. The last of the five brothers who yet remains unmarried or unengaged, his two grandmothers have therefore put their hope on him to marry the last Thewaphrom daughter, Wilairampha. However, this young and dashing nobleman is keen to find a woman who loves him for himself and not because of his status or his wealth, and when he meets Phiangkhwan on a filming set, sparks fly between them. He is, however, anxious to hide his true identity from Phiangkhwan and introduces himself as Phee, a common pilot from a country province. As their love blossoms, what will Phiangkhwan do when she eventually finds out his true identity, and how will Khun Chai Ronaphee free himself from his grandmother's wish to marry Wilairampha and chase after his true love? Adapted from the novel "Khun Chai Ronaphee" (คุณชายรณพีร์) by Phraenat (แพรณัฐ).