Set during the reign of King Sukjong in the Joseon dynasty, the story focuses on Dong Yi, a water maid who gains the trust of Queen Inhyeon and later the favour of the king when he is moved by her prayers for the health of the Queen during the court disputes caused by Jang Hee Bin. Dong Yi becomes a concubine with the rank of sook-bin and bears a son who will later become the 21st king of Joseon, Yeongjo.
| Title | Time | |
|---|---|---|
| 1 | The Start of a Tragedy | 2010-03-22 |
| 2 | The Framing of Sword Fraternity | 2010-03-23 |
| 3 | The Rescue Mission | 2010-03-29 |
| 4 | The Search for the Truth | 2010-03-30 |
| 5 | A Bad Omen | 2010-04-05 |
| 6 | The Investigation | 2010-04-06 |
| 7 | The Plan That Backfired | 2010-04-12 |
| 8 | The Medicine | 2010-04-13 |
| 9 | The Confession By Jang Ok Jeong | 2010-04-19 |
| 10 | The Evidence | 2010-04-20 |
| 11 | The Truth Revealed | 2010-04-26 |
| 12 | Dong Yi Becomes a Court Lady | 2010-04-27 |
| 13 | The Sword Fraternity Headband | 2010-05-03 |
| 14 | Dong Yi and Chun Soo Reunited | 2010-05-04 |
| 15 | Dong Yi Turn Herself In | 2010-05-10 |
| 16 | The Truth About Joseon Smuggler | 2010-05-11 |
| 17 | Jang Ok Jeong Pregnancy | 2010-05-17 |
| 18 | The Queen Dowager Poisoning Scandal | 2010-05-18 |
| 19 | The Conspiracy | 2010-05-24 |
| 20 | The Death of Queen Dowager | 2010-05-25 |
| 21 | The Queen's Dethronement | 2010-05-31 |
| 22 | The Audit | 2010-06-01 |
| 23 | The Assassination Attempt on Dong Yi's Life | 2010-06-07 |
| 24 | The Disappearances of Dong Yi | 2010-06-08 |
| 25 | The Exiled Nobleman | 2010-06-14 |
| 26 | National Security Records | 2010-06-15 |
| 27 | The Dangerous Plan | 2010-06-21 |
| 28 | The Melody | 2010-06-22 |
| 29 | The King and Dong Yi Are Reunited | 2010-06-28 |
| 30 | A Special Court Lady | 2010-06-29 |
| 31 | The King Confess His Love | 2010-07-05 |
| 32 | The Plague | 2010-07-06 |
| 33 | Dong Yi Discovers The Cause of the Plague | 2010-07-12 |
| 34 | Dong Yi's Secret | 2010-07-13 |
| 35 | The Plan to Search For Security Records | 2010-07-19 |
| 36 | Dong Yi's Trap | 2010-07-20 |
| 37 | Jang Ok Jeong's Dethronement | 2010-07-26 |
| 38 | The King's Dream | 2010-07-27 |
| 39 | A Year Later | 2010-08-02 |
| 40 | Sword Fraternity Regrouped | 2010-08-03 |
| 41 | The Hand Signals | 2010-08-09 |
| 42 | Oh Tae Seok's Murder | 2010-08-10 |
| 43 | King's Cover Up | 2010-08-16 |
| 44 | Dong Yi's New Son | 2010-08-17 |
| 45 | King Sukjong Meets His Son | 2010-08-23 |
| 46 | Dong Yi and Her Son Come Back to The Palace | 2010-08-24 |
| 47 | Child Prodigy | 2010-08-30 |
| 48 | The Plot to Kill The Queen | 2010-08-31 |
| 49 | The Death of The Queen | 2010-09-06 |
| 50 | Dong Yi Promotion to Bin Level 1 Concubine | 2010-09-07 |
| 51 | The Crown Prince is Missing | 2010-09-13 |
| 52 | The Truth About Crown Prince Illnes | 2010-09-14 |
| 53 | The Attempt to Kill Prince Yeoning | 2010-09-20 |
| 54 | Jang Ok Jeong's Family Sentences to Death | 2010-09-21 |
| 55 | Jang Ok Jeong's Execution | 2010-09-27 |
| 56 | Prince Yeoning's Marriage | 2010-09-28 |
| 57 | The King Contemplates to Abdicate | 2010-10-04 |
| 58 | Jang Moo Yeol's Plan to Frame Dong Yi and The Prince | 2010-10-05 |
| 59 | Jang Moo Yeol Executed for Treason | 2010-10-11 |
| 60 | A Happy Ending | 2010-10-12 |
