Jewel in the Crown

In the seventh year of King Sukjong, Oh Tae Suk frames Choi Hyo Won, Dong Yi's dad, for murder.

Hyo Won and his gang realize Tae Suk framed them for killing nobles. Also, Tae Suk orders arresting Dong Yi.

Hyo Won's gang attacks the royal guards who are taking Dong Yi and Hyo Won to prison. But Dong Yi is cornered.

Cheon Su leaves Dong Yi under Seol Hui's care. Seol Hui takes Dong Yi to Jangagwon to work there.

Dong Yi enters the palace to get Ok Jung's butterfly key ornament that can prove her family's innocence.

Dong Yi wakes up to find a dead body, which disappears. Meanwhile, rumors about Ok Jung spread in the palace.

King Sukjong finds the cause behind the omen. Meanwhile, Ok Jung makes a deal with Queen Mother Myeongseong.

The Southerners Party rises to power but faces risk again when the Queen's medicine is found to have poison.

King Sukjong investigates who poisoned the Queen's medicine. Queen Mother and her forces try to frame Ok Jung.

King Sukjong orders Yong Gi to find the culprit, and Tae Suk tries to frame Dong Yi as the culprit.

King Sukjong saves Dong Yi, and Ok Jung thanks her for acquitting her. Ok Jung asks King Sukjong a favor.

Dong Yi joins the Office of Investigation to others' dissatisfaction. Other members conspire to kick her out.

Ok Jung becomes a Royal Consort. Meanwhile, Cheon Su drops a sign indicating he is part of Hyo Won's gang.

Dong Yi investigates Yun Dal for his illegal financial activities when an envoy arrives from the Qing.

Yun Dal is found dead with a message that there was a setup. Also, Qing's envoy threatens to arrest Dong Yi.

Dong Yi decides to visit the envoy herself and reveals a surprising fact. King Sukjong orders saving Dong Yi.

Ok Jung tries to make her son the Crown Prince. Meanwhile, Dong Yi keeps looking for the butterfly ornament.

Ok Jung realizes her brother put poison in Queen Mother's medicine and tells Dong Yi to cover for her.

Queen Inhyun is accused of killing the Queen Mother. Dong Yi tries to prove her innocence to no avail.

The Southerners Party demands Queen Inhyun be deposed. Meanwhile, Dong Yi makes an offer to Hi Jae.

Dong Yi feels bad that Queen Inhyun was deposed, so she goes to Ok Jung and says she will bring justice.

To uncover the crime, Dong Yi asks to investigate Palace Treasury, but King Sukjong orders against it.

Dong Yi gets shot by an assassin. But King Sukjong hears that she put Palance Treasury on fire and ran away.

Ok Jung takes the Queen's position. Meanwhile, Yong Gi and Cheon Su try their best to find Dong Yi.

Dong Yi happens to find Hi Jae in Uiju and looks into it. Also, Oh Yun discovers the King is looking for her.