In Joseon, a vengeful crown prince and a memory-lost merchant mysteriously swap bodies, unraveling a web of chaos, secrets, and unexpected fate.
Cho Yeo Hwa has been a widow for 15 years. Her in-laws are the most prestigious noble family in the kingdom. During the day, she leads the life of a widow devoted entirely to her dead husband's memory and rarely ventures outside the gate of her home. At night, Yeo Hwa dons the mask of Hero, who secretly jumps over the surrounding wall to save the helpless.
A love-story between a noblewoman and a mysterious man who shows up in her hometown set in the 1600s during the Qing invasion.
Set during the Joseon Dynasty, the story of the meeting between the young widow Jung Soon-deok and young widower Shim Jung-woo as well as the struggle the two go through together to marry off the four young maidens who represent Joseon.