Jin Geum Seong is a poor nobleman who lives with his mother and making ends meet is challenging. While gathering wood on the mountain, he spies a woman swimming nearby. Believing she is about to take her life, he creates a disturbance allowing him to save Choi Hye Seong, the third daughter of Choi Jin Sa. Only things are not as they seem when she turns out to be a man named 'Salbyul,' Love will bloom between Hye Seong and Geum Seong, much like a flower on a warm spring day.
Son Da Eun, 17, is the youngest of three sisters. From an early age, she and her sisters would spend their time reading romance-themed comics and novels, and Son Da Eun would spend her nights dreaming of finding true love. Her family moves to the South Korean capital, Seoul, and she finds herself living next door to a handsome high schooler named Kim Seung Hyu. He is charming and attractive, and she feels that perhaps he might be her first true love.