Once upon a time, there was a young couple living in the Joseon Dynasty. The girl, Hong Yoonseo, was of noble birth, and was destined to marry an older man. The boy, Park Sunghoon, was of low birth. A simple "peasant". They planned to run away with each other under a cherry tree, except while on the run, they are killed by bandits. Many years later, it is 2023. Hong Yoonseo is reborn as a photographer, and Park Sunghoon is reborn as a member of the boy group ENHYPEN. But they don't remember.