Season 1

To everyone else in town, Hong Sam-nom is known as a man who'll do anything for money. But to his adoptive father, he's known by a different name.

As the other eunuch trainees try their best to pass the three exams, Sam-nom tries her best to fail, but someone wants to make sure she stays.

Sam-nom is stunned when she sees her exam result for her blank answer sheet. The king's mental state is becoming increasingly unstable.

At the king's upcoming birthday banquet, the crown prince plans to seek permission for regency from the Qing envoy, who's notoriously hard to please.

No one can identify or locate the mysterious woman who performed the solo dance. Sam-nom requests permission to attend the Lantern Festival.

The crown prince's attitude toward Sam-nom completely changes. Eunuch Ma tells the Qing envoy that he can bring what the envoy desires most in Joseon.

A rumor spreads in the palace that the crown prince doesn't like women. Another rumor says that eunuchs and court ladies are carrying on affairs.

For Sam-nom, the crown prince's confession is bittersweet. The crown prince and Premier Kim butt heads regarding the national civil service exams.

Sam-nom starts avoiding the crown prince's palace. The crown prince finds her at Royal Consort Park's residence, where Princess Yeongeun has gone missing.

As political unrest grips the capital, the king decides to hasten the crown prince's marriage with a candidate he already has in mind.

The crown prince defends the young girl who's accused of treason, but poison discovered in the king's meal gets linked back to the girl's father.

Ra-on's mother is alarmed by what Ra-on has been doing. The crown prince finds evidence of corruption committed by a minister from the Kim family.

Realizing the danger of her staying in the palace, Ra-on secretly prepares to leave. The crown prince orders a search for the attacker who escaped.

The crown prince is deeply affected by Ra-on's absence. The chief eunuch reminds Byeong-yeon where Ra-on needs to be. The queen gives birth to a baby.

The crown prince wishes to know what Ra-on's true intentions really were. The chief eunuch senses that there's a traitor within the Baekwoon Group.

The news of Hong Gyeong-rae's return shocks everyone. Even while putting her life at risk, Ra-on wishes to reenter the palace to meet her father.

One month after the chaos at Hong Gyeong-rae's interrogation, Premier Kim notifies the queen that her baby boy will soon become the crown prince.

Jeong Yak-yong gets summoned to the palace to treat the crown prince, and Ra-on follows in disguise. Rumor has it that the crown prince is dying.