A political coup sees Lee Yul (D.O.) become a somewhat reluctant Crown Prince of Korea – after his uncle is disposed to make way on the throne for his father.
His father’s cruelty and the death of his mother have left him emotionally scarred, although most of the court think he is cold and aloof.
As part of his duties, he issues an edict that forces all of the throne’s subjects to marry before they turn 28.
One woman struggling to stay on the right side of the new law is villager Hong Shim (Nam Ji Hyun), a woman with a secret identity even she is not fully aware of.
Hong Shim works tirelessly in her village to support her ailing father. A bizarre twist of fate brings her together with the prince whose edict is burdening her so much, unaware that their paths have actually crossed once before…
While on his way to an official function, Lee Yul’s party is attacked in an ambush while passing through the village. His life is only saved by a quick-thinking official, who dresses the Crown Prince in peasant garb. Regardless, Lee Yul is struck by an arrow and hits his head, falling unconscious.
When he awakes, Lee Yul finds himself in Hong Shim’s house. Unaware of who he is, she and her father treat his wounds. The attack has left him with memory loss, and – taking him for an unmarried commoner – the villagers wonder if he could possibly marry Hong Shim, saving her from her predicament, unaware of his true identity.
Will anyone ever discover Lee Yul’s true identity? Will he ever regain his memory? Will Hong Shim and Lee Yul recall the time they met before these events, many years ago? And can a royal prince really find true love with a common villager?
“100 Days My Prince” is a 2018 South Korean drama series directed by Lee Jong Jae.