In Joseon's feudal past, deposed Crown Prince Yi Heon (Yoo Hyeon-woo) is forced into lonely exile by his cruel younger brother who usurps the throne. Yi Heon's life is in danger at every turn due to his brother's plan to secure the throne by killing him. Constantly threatened by assassins and other plots, Yi Heon's only real ally is the loyal and friendly guard warrior Jin (Kim Tae-jeong). Meanwhile, modern high school student Eun-ho (Joon-hee) loves to paint. In fact, art is everything to him. Tasked with completing a mysterious painting, Eun-ho unexpectedly travels back to the distant past to meet Yi Heon. The two begin to form an intimate, romantic, and tender bond. However, when the older brother who ascends the throne becomes restless and wants to kill the exiled Crown Prince as soon as possible, Eun-ho begins to realize that he may be Yi Heon's most powerful person and his only chance of survival. .Stained is a 2021 Korean drama directed by Hana.