Bu-yeon tells Uk to see her for who she is
Uk accuses her of confusing him; she knows of a tall tree he once promised to climb, and insists that it is her hand he is holding.
30 moments · 55 min of essential viewing.
Uk accuses her of confusing him; she knows of a tall tree he once promised to climb, and insists that it is her hand he is holding.
Bu-yeon senses Yul's energy at Jinyowon; meanwhile a captive So-i names one suspect after another rather than give up her secret.
Uk asks Lady Jin to let him into Jinyowon as Yul and Bu-yeon find the wounded So-i, who tells Bu-yeon she only thinks she is Jin Bu-yeon.
Lady Jin shows Uk the unhatched fire bird; they trade blame over the ice stone and how she kept her daughter locked away.
So-i reveals Lady Jin's real daughter was Mu-deok from Sari Village, saved from the lake with Naksu's soul still inside, now wearing Naksu's face.
Yul understands Bu-yeon was Naksu all along; overwhelmed, he asks her to let him stay a moment and begs her not to tell Uk.
Bu-yeon insists she came for her friend Seo Yul, not Uk's, and refuses to go home until Uk gives in and walks her back.
Bu-yeon recalls meeting So-i and Yul, says Yul would have been a kind husband, then teases Uk to summon fireflies or fireworks.
Yul swears So-i to secrecy, even from Uk, and confesses he knew the truth about Mu-deok long ago.
After another nightmare, So-i notices the keepsake Yul still holds and warns him not to kill Naksu, because he likes her.
Maid Kim announces her betrothal to Park Jin; Uk struggles for words until she says he is like a son and he congratulates her.
Told the royal family and Cheonbugwan are waking the fire bird and that the King's Star is his, Uk vows vengeance on a world he no longer cares for.
Master Lee hands Uk a gold plaque and letter: he is the late King's son, born through the alchemy of souls, and must not let his power bring chaos.
Bu-yeon locates the hidden earthenware and explains she sees others' memories by touching their things, then is told she resembles spring.
On the boat Bu-yeon suddenly hangs over the edge, recalling having no strength, and realizes this memory is hers.
Feeding the turtle, Bu-yeon and the Crown Prince, whom she takes for a eunuch, swap marriage advice and confessions of feeling like a fraud.
The Crown Prince brings news of a posting to North Fortress, learns the turtle kindness was a mistake, and goads a listless Uk with his master's creed.
In pain from the parasite, Yul tells So-i that suffering is lighter than his regrets and that she has done enough for him.
Lady Jin weighs how to cure a blood parasite, and it emerges that as Bu-yeon's divine powers return, Naksu's body may reject her.
Showing off her Songrim plaque, Bu-yeon speaks of a harsh master in words that shake Uk, then vows to grow strong and protect him.
Park Jin sulks that Uk always comes first and poses the drowning question; Maid Kim turns it back on him, and both admit how much they care.
Bu-yeon wants to see whether the giant tree she remembers is real, and Yul offers to take her to Danhyanggok.
Uk hunts for the jade, learns she is going to Danhyanggok with Yul, and the two squabble over friendship before he leaves rattled.
At the place where they first met, Yul recalls how much he liked her as a child and his regret at doing nothing.
Master Heo asks why Yul has been avoiding him and offers to examine him; Yul promises to return and wishes him good health.
So-i returns to make sure Yul goes to Jinyowon, and tells her servant that seeing him once made her dark world feel clean.
Cheonbugwan mages beat So-i over the missing parasite while her servant finds Yul on his trip with Bu-yeon and tells him she was taken.
Breaking her promise, Bu-yeon tells Uk that Yul is severely ill and she saw a strange energy inside him.
Yul blocks the mages from taking So-i to Jin Mu; when the parasite is exposed, the dying So-i thanks him for making the world bright.
The mages refuse to spare Yul; after the fight, Uk reaches his fallen friend, Yul apologizes, and Uk vows no one will leave alive.

Every Alchemy of Souls moment featuring Jang Uk, in story order. Played by Lee Jae-wook.

Every Alchemy of Souls moment featuring Seo Yul, in story order. Played by Minhyun.

Every Alchemy of Souls moment featuring Jin Bu-yeon, in story order. Played by Go Youn-jung.

Every Alchemy of Souls moment featuring Park Jin, in story order. Played by Yu Jun-sang.

Every Alchemy of Souls moment featuring Crown Prince Go Won, in story order. Played by Shin Seung-ho.

Every Alchemy of Souls moment featuring Jin Ho-gyeong, in story order. Played by Park Eun-hye.

Every Alchemy of Souls moment featuring Maid Kim Do-ju, in story order. Played by Oh Na-ra.

Every Alchemy of Souls moment featuring Master Lee Cheol, in story order. Played by Im Cheol-soo.
Every Alchemy of Souls moment featuring So-i, in story order.

Every Alchemy of Souls moment featuring Heo Yeom, in story order. Played by Lee Do-gyeong.

Every Alchemy of Souls moment featuring Heo Yun-ok, in story order. Played by Hong Seo-hui.
Every Alchemy of Souls moment featuring Queen Seo Ha-seon, in story order.