Secret Royal Inspector Joy - Season 1 (2021)

Jo-yi and Yi-eon go undercover to save children from an abusive master. Their plan goes according to plan, until Park Tae-seo shows up.

Due to a lack of evidence, Yi-eon sends Tae-seo and Cha Mal-jong to be tried at a higher court. The prisoners get moving, but a surprise awaits.

Jo-yi and Yi-eon assume another disguise to enter Tae-seo's hideout. Park Do-su heads off to find his brother and the source of his wealth.

Do-su finds himself a guide who can lead him directly to Tae-seo. Jo-yi follows a figure in the night and comes across a startling scene.

While flipping through Tae-seo's trade records, Jo-yi spots a familar symbol. Yi-eon looks for an official who cannot be bribed.

Jo-yi asks a tradeswoman to help locate her mother, unaware of the trap she's willingly walked into - and the shocking truths that await.

The king orders a crackdown on Park Seung and his allies. Jo-yi has a rough time adjusting to life in the city, until an old friend comes to her aid.

Yi-eon looks for the physician to the late crown prince. Jo-yi struggles to come clean about the piece of evidence she has in her possession.

When the interrogation refuses to implicate all responsible parties, Mal-jong makes one last plea. Yi-eon is advised to throw out the whole case.

When Yi-eon goes missing, Jo-yi tracks him down to make sure he is not alone during a difficult time. Ra Gwang-sun searches for her father.

Yi-eon's grandmother gets a servant to spy on her grandson's lover. Jo-yi is commissioned to make a special order of socks with a peculiar feature.

An alliance arises between Yi-eon's party and the people of Kko-ri Island to take down a powerful enemy. Seung sets his sights on his next target.

Yi-eon gives Seung a chance to apologize, an act Seung's pride does not allow. But a terrible secret he never expected brings him to his knees.