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.

Three con artists with different backgrounds, team up for a daring and adventurous scheme of revenge against the villains of this era.

A pastor and a detective, driven by their beliefs, pursue a missing person case, with the pastor seeking retribution after a divine revelation identifies the culprit who abducted his son.