The East Palace Episode 4 Review: "Episode 4" — Saeng-gang Forces the Queen Dowager to Confess, Gu-cheon Frees the Pond Spirit, and Prince Yeongan Falls to a Second Curse
What happens — the short version (spoilers)
- At the Queen Dowager's birthday banquet, Prince Inha fills in for the absent Prince Yeongan and collapses as the King's resentment disrupts the display of a rival branch.
- Saeng-gang pulls Gu-cheon out of the World of Gwi, then recovers after the gwi-mae claws her and consumes part of her soul.
- Using the baby shirt's thread and Saeng-gang's arrow, Gu-cheon releases the falsely accused Favored Court Lady from her resentment; Prince Yeongan recovers immediately.
- Gu-cheon doubts that one won-gwi could have killed seven princes: four sons of the late King and three sons of the present King.
- Saeng-gang recreates the hangwa sent to her mother before her death and forces the Queen Dowager to admit she framed, tortured, and killed the Favored Court Lady and her unborn child.
- Gu-cheon discovers the spirit that marked Saeng-gang and cursed Prince Yeongan was never the favored lady; Prince Yeongan dies at the hunt, and Gu-cheon stays to protect Saeng-gang.
Saeng-gang drags Gu-cheon back from the gwi-mae by asking him to survive the palace with her, then spends the hour making good on that request. The baby shirt from the royal guard's house releases the woman in the pond and restores Prince Yeongan, but the victory feels wrong to a man who knows what a 30-year-old won-gwi can do. While Saeng-gang turns the Queen Dowager's contempt into a confession before living witnesses, Gu-cheon realizes the palace has hidden one spirit behind another. The hour closes the grievance it can name, then exposes a curse fixed on the King's sins.
Saeng-gang pulls Gu-cheon from the gwi-mae, and Prince Inha collapses at the Queen Dowager’s banquet
The Queen Dowager’s 70th birthday begins as a succession ceremony with one pointed absence. Prince Yeongan cannot present the ceremonial drink, so she calls Prince Iksang’s eldest son forward to occupy the empty place. Prince Inha bows, offers the cup, and has barely completed the performance when the doors fly open and something unseen enters with the wind.
The King looks at the disturbance and says he knew resentment would arrive if he drove it far enough. Then Prince Inha collapses. Prince Iksang begs for a physician; the King dismisses the boy as flawed, tells his mother that her judgment needs improving, and orders the banquet resumed. The Queen Dowager tried to display an alternate royal branch. He leaves it unconscious on her floor.
At the same moment, Saeng-gang is fighting for Gu-cheon inside the World of Gwi. The creature wearing his mother’s tenderness has turned vicious, and he is close to killing it when she reminds him that murder will make him the ak-gwi he most fears becoming. She refuses its accusation for him: his mother’s death was not his fault. Then she promises to find his mother’s grave once they escape and begs him to make it out of the palace alive with her.
They return together, though Gu-cheon’s first response is anger. Saeng-gang entered the realm he forbade and nearly died pulling him free. He cannot watch another person die because of him. She admits she was terrified and promises not to cross again if he truly cannot bear it. Neither calls the exchange trust.
Saeng-gang hears her mother call the King the palace entity, then wakes to a gentler Gu-cheon three days later
The bell beside Saeng-gang carries her into a childhood memory. Her mother insists there are no spirits even as strange voices gather around the girl, then gives the fear another name: “Your father is the palace entity.” The man who once handed Saeng-gang a bell to drive away those voices now rules a court built on commanding her not to hear them.
She wakes after three days and nights to find Gu-cheon outside her window asking after her fever. Ji-yul supplies the rest: Gu-cheon appeared dead, Saeng-gang slept like the dead, and neither has eaten since. She begged medicine from a female royal physician and brought rice cakes for both patients.
Gu-cheon refuses his share and calls Saeng-gang Your Highness as though formality can end their partnership. He says he will handle the baby shirt and pond spirit alone; she demands the plan. Soon they are arguing over how much praise she is owed for the lightning-struck jujube wood and whether the ggeomeoksali deserves thanks for saving him.
Gu-cheon says good riddance to the creature that fell helping him. Saeng-gang calls him cold. He wants her outside the danger; she no longer accepts protection through exclusion.
Gu-cheon threads the baby shirt onto Saeng-gang’s arrow, and Prince Yeongan wakes when the favored woman is released
Saeng-gang’s wound removes any time for a careful ritual. She tells Gu-cheon that the spirit clawed her in the other realm and consumed part of her soul. That stolen energy has strengthened the curse again, just as the royal physician warns the King that Prince Yeongan may not survive the night.
The baby shirt offers one narrow route through the woman’s resentment. Gu-cheon unravels its thread, stains it with his blood, and wraps it around an arrow for Saeng-gang. She knows how to shoot because, princess or not, she stubbornly made her father teach her. Gu-cheon’s answer — that she has apparently been peculiar since childhood — is exactly the encouragement their partnership permits.
The favored woman was falsely accused of betraying the late King, and torture killed her child. Gu-cheon confronts her spirit in the pond while Saeng-gang waits for the phantom baby’s crying to stop. When silence comes, she fires. He tells the woman that killing royal children will not return her own and asks her to leave the palace that has kept her grief alive for 30 years.
Prince Yeongan wakes fully recovered. The King receives his living son; the Queen Dowager receives proof that Gu-cheon now knows why the lowborn maid became a won-gwi. Her first response to the end of the curse is to order the man who ended it silenced.
Saeng-gang wins Gu-cheon’s freedom, but an easy victory leaves seven dead princes unexplained
The King thanks Saeng-gang with an old tenderness she no longer wants. A memory shows him giving his frightened daughter the bell she still carries, promising it will quiet the strange sounds. In the present, she refuses to be praised like a child and names her reward: Gu-cheon must leave the palace immediately, unharmed. Her second condition matters. She knows royal gratitude can become a death sentence the moment a useful man knows too much.
Gu-cheon ought to be delighted. He owns little enough that packing means taking the jujube branch, yet he cannot accept the fight he just won. Four of the late King’s sons and three of the present King’s sons have died under the supposed curse. A won-gwi with seven royal deaths behind it should not have yielded so quickly.
He asks Saeng-gang whether the pond spirit killed those princes alone. She has no answer, but she does have one name for the human crime that brought her back. As Gu-cheon prepares to leave, Saeng-gang carries a recreation of her mother’s final palace gift to the Queen Dowager.

Saeng-gang serves the Queen Dowager her mother’s last hangwa, and a roomful of court ladies hears the confession
Saeng-gang enters the Queen Dowager’s quarters with a modest birthday gift and no intention of observing the old rules. She accuses her of framing Saeng-gang’s mother to bury the salt-storehouse killings, then recreates the hangwa sent from the palace the day before her mother died — same taste, same ingredients — and invites the Queen Dowager to eat. It is accusation served as hospitality. The Queen Dowager does not touch the food and denies both deaths, but her threat moves quickly to Gu-cheon, the man she assumes supplied the truth.
Her guards are already beating him into a wooden chest. Gu-cheon jokes about a drowned grandfather rather than name the pond spirit, while Saeng-gang produces the baby shirt and repeats the royal guard’s account: the Queen Dowager gave it to him and forced him to claim the favored woman’s child. The Queen Dowager still trusts rank to protect her. The dead woman had once been her family’s servant; how could anyone believe jealousy crossed such a distance?
Saeng-gang asks once more, and the answer tears through the denial. The Queen Dowager endured the late King’s contempt for failing to bear him a child, then watched a maid receive his love and carry his blood. She admits the false accusation, the torture, and killing the child growing inside the favored woman. Lady Jang hears it. So do the court ladies waiting outside with Royal Noble Consort Sukbin.
The Queen Dowager demands to know who would believe an expelled princess. Saeng-gang opens the doors on a wall of witnesses and returns the salt storehouse to her: if the Queen Dowager wants silence, she will need to kill these women too and find “a lot of jars for their bones.” Thirty years ago, court ladies were burned because they heard the wrong royal secret. This time they walk out carrying it.
Gu-cheon turns back for Saeng-gang, a hidden spirit kills Prince Yeongan, and he refuses to leave her behind
A man pulls Gu-cheon from the chest and gives him the pass Saeng-gang secured. He learns that she pleaded for him to leave unhurt and reaches the road, where the ggeomeoksali turns up alive. Gu-cheon declares their debt settled, walks away, then comes back to lend it enough Yang energy to recover. The creature takes too much. Even his farewell cannot remain dignified.
Inside, Saeng-gang presses the King about his four dead brothers. He says a spirit killed every one, but his body answers before his words do. He ends the conversation for a hunt with the newly recovered Prince Yeongan, leaving Saeng-gang surrounded by voices about the truth nobody may learn.
Gu-cheon returns as those voices overwhelm her. The victory omitted one thing he saw in the other realm: the favored woman was not the spirit that cursed Prince Yeongan or tore through Saeng-gang’s body and soul. Another presence remains. At the hunt, Prince Yeongan falls as a male spirit promises revenge on the King and vows to become the real one.
By the time Gu-cheon and Saeng-gang understand, the prince is dead. She points Gu-cheon toward an escape path before the King can punish him for failing to save his son. He will not take it. The spirit has already marked her, and leaving now would mean abandoning her to the prince’s fate. Saeng-gang crossed realms to save him; Gu-cheon answers plainly, “This time, I’ll be the one who is going to save you.”
Tiny details worth clocking
- Prince Inha presents the ceremonial drink assigned to the absent heir, then collapses in the very place the Queen Dowager meant to display him as an alternative.
- Ji-yul brings rice cakes for both investigators after their three-day fast; Gu-cheon still refuses his portion when Saeng-gang tells him he cannot work without eating.
- Saeng-gang’s father gave her a bell to silence the voices, while Gu-cheon’s bell has repeatedly taught her when to listen and when to pull him home.
- Gu-cheon packs only the lightning-struck jujube wood, then spends some of the Yang energy he has barely recovered on the ggeomeoksali he claimed not to miss.
- The 13 dead court ladies needed Saeng-gang to carry their testimony; she answers the Queen Dowager by arranging living court ladies who can carry this confession themselves.
Final verdict
Episode 4 gives the favored woman’s grievance a real ending without mistaking it for the palace’s whole curse. The pond ritual is compassionate and exact: her baby’s shirt becomes the thread on Saeng-gang’s arrow, the crying stops, and Gu-cheon asks her to leave the royal house rather than keep dying inside it. Then his doubt reopens the count. Seven princes are far too much death for the spirit they just faced, and Prince Yeongan’s death proves that releasing one wronged woman cannot absolve the power that produced her.
Saeng-gang’s confrontation with the Queen Dowager is the hour’s strongest passage. The hangwa tests guilt, the baby shirt corners the official lie, and one contemptuous question draws out the confession. More importantly, Saeng-gang does not rely on her own royal status to make truth count. She fills the next room with women the Queen Dowager considers disposable and turns them into a record she cannot burn quietly. The palace survives by controlling who gets heard; Saeng-gang makes an audience part of the trap.
The confession comes a little too readily once jealousy is named. The Queen Dowager’s class fury makes the eruption believable, but she moves from denial to a detailed admission so fast that Saeng-gang’s witnesses feel almost too perfectly timed. The result still rests on the guard, the shirt, the hangwa, and the salt-storehouse dead. Gu-cheon was free. He turns back because the curse is larger than the woman in the pond and Saeng-gang is no longer someone he can leave to it.
Rating: 9.2/10 — A forceful hour that resolves one haunting with care, traps the Queen Dowager in her own contempt, and reveals a far more dangerous spirit behind the royal deaths.
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Reviewed by Mira Vance · QuizFandom Editor & Lead Reviewer. Every rating is an honest per-watch assessment from the desk that also writes the quizzes — not a press release rehash.