100 Days My Prince - Season 1

First aired: 9/10/2018 16 episodes

A prince is the victim of an attempted assassination. He falls off a cliff and subsequently wanders for 100 days under a new name and personality. During that time he meets the head of a prominent detective agency.

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Episodes

1. Today Is Your Only Chance to Cry

Aired: 9/10/2018

Lee Yul begins a secret investigation after growing suspicious of his worsening health. Yeon Hong-sim returns to Hanyang in search of her brother.

2. Crown Prince in Great Agony

Aired: 9/11/2018

Yul uncovers the mastermind's identity and Kim So-hye's secret before coming under attack in the forest. Hong-sim is punished for refusing to wed.

3. Your Name Is Won Deuk

Aired: 9/17/2018

Yul loses all memory, but gains a new identity as Na Won-deuk. Hong-sim begrudgingly chooses to become a wife to avoid life as a concubine.

4. The Newlywed Couple in Debt

Aired: 9/18/2018

Jung Je-yun searches for a link between the royal physician's murder and Yul's disappearance. Hong-sim puts Won-deuk to work to repay his debt.

5. Do You Not Consider Me Your Daughter Anymore?

Aired: 9/24/2018

News of the crown prince's passing is made public. Hong-sim is delighted to learn of Won-deuk's ability to read and write.

6. Do You Know How Much I Missed You?

Aired: 9/25/2018

Hong-sim's reunion with her brother doesn't go as expected. Eunuch Yang notices something off about the crown prince's dead body.

7. Stay with Me

Aired: 10/1/2018

Witnessing Won-deuk's martial arts skills, Hong-sim gets curious about his real identity. News of the queen's talisman sparks protest and debate.

8. You Are Not Won Deuk

Aired: 10/2/2018

Won-deuk celebrates an unforgettable birthday. Mu-yeon completes his final task for Kim Cha-eon and prepares to leave with Hong-sim.

9. Everything I Told about You Is Not True

Aired: 10/8/2018

Je-yun reunites with Hong-sim as the new county governor. To recover his memory, Won-deuk visits Hanyang and enters palace walls.

10. They Say His Highness Is Alive

Aired: 10/9/2018

With Hong-sim and Won-deuk's help, Je-yun concocts a plan to get in Park Seon-do's good graces. Rumors swirl about the crown prince being alive.

11. Vice-Premier Kim Is Missing

Aired: 10/15/2018

The king tries to regain control of his throne. Hong-sim and Won-deuk settle their affairs prior to leaving. Je-yun sees Yul in Won-deok.

12. The Return of the Crown Prince

Aired: 10/16/2018

Cha-eon interrupts the coronation ceremony with a shocking announcement. Yul has trouble moving on from his memories with Hong-sim.

13. Demand from Ming’s Envoy

Aired: 10/22/2018

Hong-sim searches for Mu-yeon in Hanyang with her father and Je-yun in tow. Yul's competency is tested by a visiting envoy.

14. We Must Solve the Riddle

Aired: 10/23/2018

Won-deuk and Hong-sim reconnect as Yul and Yoon I-seo. Je-yun assists Yul in his quest to find his diary — and answers.

15. Evidence of Vice-Premier’s Evil Deeds

Aired: 10/29/2018

Having regained his memory, Yul seeks revenge on a killer in his midst. Cha-eon plans bloodshed to achieve his goals.

16. The End of War between Crown Prince and Vice-Premier

Aired: 10/30/2018

Cha-eon leaves behind his final wish. Moved by the king's hopes and Je-yun's plan, Yul makes good on his promise to I-seo.