Maid Kim's bird-egg theory and Mu-deok's private vow
Maid Kim clears Uk's room, guessing he loves a refined lady; Mu-deok calls their bond a shell she will leave once she hatches.
S1E10 · Episode 10
21 moments · 51 min of essential viewing.
Moments, in order
Uk memorizes the rules, Park Jin hands him another book
Uk recites Songrim's rules from memory to win his freedom, but the leader says he only memorized them and sets a new condition.
The blank pages of Words of the Heart
Uk finds the new book empty; the others explain it only reveals itself to focused energy and mock him until Yul cuts them off.
Park Jin admits he never meant to train Uk
The leader reveals he is keeping Uk close only to stop trouble, expecting Jang Gang to come once he hears his son entered Songrim.
Uk realizes he was tricked and runs away
Uk storms off feeling deceived and slips out of Songrim, asking Young Lady Heo to look the other way.
Seo Yul makes Mu-deok buy him a new umbrella
Yul visits Mu-deok to reclaim his lost umbrella, talks about his old leg wound and a friend from Danhyanggok, then makes her pay up.
A staged breakup gets postponed for a magic show
An engaged pair plan a public fight to end their engagement, but she wants to see a magic show first, so they delay the breakup.
Thugs corner So-i and a mage steps in
Men accuse a woman called So-i of faking blindness and stealing; she cries for help, a mage fights them off and leaves her an umbrella.
Uk and Mu-deok's stolen reunion
Mu-deok signs up as applicant 125, learns Uk sneaked home, and catches him just before he heads back; she reveals Songrim is hiring.
The Crown Prince catches Uk sneaking out
Go Won finds Uk outside Songrim; Uk bribes his silence with a honey biscuit, and the prince warns him about mages nearby.
Plotters plan to use Uk's constellation plate
While the prince eats, schemers note his softening toward Songrim and say Uk's constellation plate will force him to kill Uk.
Heo Yun-ok covers for Uk's four-hour absence
A suspicious servant barges in, but Yun-ok has been waiting in Uk's room to pretend they were together, and he slips back in time.
Park Jin and Maid Kim fall out over a bribe
Park Jin scolds Maid Kim for gifting a scarf to get Mu-deok into Songrim; wounded pride turns it into a falling-out neither wanted.
Master Lee reveals the book is a love letter
Master Lee says it would take a year of training, then lets slip a secret: the poem was written for a woman who could not see.
Maid Kim gives Master Lee a warm coat
Heo Yeom fusses over Master Lee's thin clothes, then Maid Kim arrives and gives Master Lee a coat as a thank-you gift, not a bribe.
The Crown Prince and Yul cheat on the servant exam
Go Won and Yul get the test papers and solve them, working out a tricky seating puzzle and how to wash ink from clothes.
The Crown Prince's surprise visit to the exam hall
The prince drops in to encourage the applicants, and Mu-deok's name is read among those who passed the written test.
Uk unlocks Words of the Heart with Seol-ran's name
Reasoning that every love letter starts with a name, Uk learns who the poem was for, and the invisible text appears to him.
The poem plays as Mu-deok races to the finish
Seo Gyeong's poem is read over Mu-deok's water-carrying race, and an old memory pushes her on to take the last place.
Park Jin starts to wonder about Mu-deok
Told Uk read the book and carried his collapsed maid to Sejukwon, Park Jin realizes Mu-deok has always been at Uk's side.
Uk answers Mu-deok's unsent love letter
Mu-deok calls Seo Gyeong's letter cowardly; Uk says her trip into Songrim was her own letter and gives his reply: he missed her too.
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