plot…..Princess So-Ye, from the Daewon Empire, has the blood of mermaids in her veins. Before she is sacrificed for her grandfather, the Emperor’s immortality, she escapes from the palace.
Thirteen years later, she returns as Dan, the daughter of Yeomuk, her father’s trusted servant, and works as a secretary in the neighboring country of Jemyeong. Raised by the kind Yeomuk and cared for by the people of Gwangyang, Dan grows up as a bold, cross-dressing woman.
Dan, determined to save other beings like herself, takes on any job that pays well. One day, through an assignment for the Gwangyang office, she learns about the location of an ancient tomb.
Excited to make money by excavating ancient relics, she unexpectedly faces a dangerous situation. An unknown man named Heon tries to kill her.
With her tough survival skills, Dan fights to stay alive. The connection between Dan and Heon, which begins as a bitter fate, hides secrets from their past lives.
Their story is a mix of comedy and heartfelt moments, filled with love, as they uncover the truth behind their intertwined lives.