Lee Yool falls off a cliff and nearly dies in an attempted assassination. He loses his memory, and wanders for 100 days under a new name and personality. During this period, he meets Hong Sim, head of the first detective agency in Joseon.
| Title | Time | |
|---|---|---|
| 1 | Today Is Your Only Chance to Cry | 2018-09-10 |
| 2 | Crown Prince in Great Agony | 2018-09-11 |
| 3 | Your Name Is Won Deuk | 2018-09-17 |
| 4 | The Newlywed Couple in Debt | 2018-09-18 |
| 5 | Do You Not Consider Me Your Daughter Anymore? | 2018-09-24 |
| 6 | Do You Know How Much I Missed You? | 2018-09-25 |
| 7 | Stay with Me | 2018-10-01 |
| 8 | You Are Not Won Deuk | 2018-10-02 |
| 9 | Everything I Told about You Is Not True | 2018-10-08 |
| 10 | They Say His Highness Is Alive | 2018-10-09 |
| 11 | Vice-Premier Kim Is Missing | 2018-10-15 |
| 12 | The Return of the Crown Prince | 2018-10-16 |
| 13 | Demand from Ming’s Envoy | 2018-10-22 |
| 14 | We Must Solve the Riddle | 2018-10-23 |
| 15 | Evidence of Vice-Premier’s Evil Deeds | 2018-10-29 |
| 16 | The End of War between Crown Prince and Vice-Premier | 2018-10-30 |
