Master Lee tells Uk about the fire bird
Master Lee suspects a charm is a copy of the volcano-born fire bird locked in Jinyowon and asks Uk to check on it; Uk refuses to get involved.

Every Alchemy of Souls moment featuring Jang Uk, in story order. Played by Lee Jae-wook.
376 moments · 14h 31m · by Favseen
Moments 301–330 of 376
Master Lee suspects a charm is a copy of the volcano-born fire bird locked in Jinyowon and asks Uk to check on it; Uk refuses to get involved.
Bu-yeon asks Uk to visit her mother and he declines; too late he learns Lady Jin offered to forgive them and Bu-yeon went alone.
Bu-yeon arrives alone with the gifts, then Uk appears behind her and formally apologizes to Lady Jin.
Uk talks Lady Jin into giving them a room; alone, Bu-yeon misreads his intentions before he asks her to open Jinyowon for him.
Sneaking through the garden, Bu-yeon tells Uk how she imagined sitting alone atop a tall tree hoping to be rescued, leaving him shaken.
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.
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.
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.
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.
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.
Uk hunts for the jade, learns she is going to Danhyanggok with Yul, and the two squabble over friendship before he leaves rattled.
Breaking her promise, Bu-yeon tells Uk that Yul is severely ill and she saw a strange energy inside him.
The mages refuse to spare Yul; after the fight, Uk reaches his fallen friend, Yul apologizes, and Uk vows no one will leave alive.
Uk reaches the gambling den to find Yul down and apologising; his grief turns into a promise of total vengeance.
Facing Uk's sword, Go Won admits Uk's rage is aimed at him and asks him not to waste years of restraint; Songrim declares it stands with Uk.
Jin Mu apologises at the gate, but Uk's real target was Lady Jin; he begs her for Yul's life and tells Jin Mu killing him is not the priority.
After the standoff ends, Uk tells the Gwanju his own life hangs on whether Yul survives.
Lady Jin names the fire bird as the cure, then demands Uk return her daughter in exchange; he agrees.
Park Jin teases Uk with a drowning riddle about himself and Maid Kim, then tells him not to abandon Bu-yeon to save Yul.
Uk tells Bu-yeon to stay out of it; she says Yul is her friend too and she will help until the end.
Heo Yeom lays out a water wick, Yul's energy and the fire bird's power, and explains why Cho-yeon's blood is the key.
A warning about pregnancy sends Dang-gu into a panic; Bu-yeon volunteers and flatly insists there is no chance for her and Uk.
The plan needs a fortune in gold; Uk reveals he dumped his soul-shifter bounties at Jeongjingak and never spent them.