In 1506, Yeonsangun (Lee Dong-gun) was tyrannical and his ministers launched a coup and made Yeonsangun's brother, Jinseongdaeun (Yeon Woo-jin), king. Jungjong and his wife, Shin Chae-kyung (Park Min-young), were deeply in love, but because her father was Yeonsangun's trusted general, Chae-kyung was deposed after only seven days as a queen. The two were forced to separate and spent their lives missing each other, leaving behind the most unforgettable love tragedy in Joseon history.