This article contains spoilers for the finale of Key to the Phoenix Heart, available on iQIYI. The conclusion resolves the conflict between the Northern Qin and the Great Ye, while revealing the fate of Xiao Wuyi following his disappearance in battle.
What happens in the finale
The story progresses after Xie Jiayu leads a civilian revolt at the Northern Qin camp and reunites with the Blue Dragon army. On the battlefield, Xiao Wuyi is presumed dead. His body is never found, leaving behind only his sword, Wujin.
Over time, the Northern Qin declines due to internal conflict. Meanwhile, the Great Ye grows stronger under the rule of Emperor Li Mao. During this period, Xie Jiayu travels, teaching the art of forging and mechanism construction. She returns to the capital at the request of Li Mao, who decides to reactivate mining and entrusts her with the map of the deposits.
At the palace, Xie Jiayu crosses paths with a masked imperial guard commander. During the Festival of a Thousand Lanterns, she is attacked by Northern Qin spies and is saved by the same guard. At that moment, neither recognizes the other. Shortly after, Xie Jiayu finds drawings of the Wujin sword in a shop, which arouses her suspicions.
Emperor Li Mao reveals what truly happened on the battlefield: Xiao Wuyi survived falling into an underground abyss after being saved by a doctor. However, he lost his memory. To keep him safe, he was given a new identity as an imperial guard.
The memories of Xiao Wuyi begin to return when he sees the ribbon left by Xie Jiayu on the wishing tree. With his memory recovered, he uses a drum during the festival to play a rhythm known only to the two of them. Xie Jiayu recognizes the sound, runs through the crowd, and the two finally reunite.
Ending explained: The meaning of the finale
The conclusion of Key to the Phoenix Heart marks the political consolidation of the Great Ye and ends the military threat of the Northern Qin, whose fall is attributed to its own internal decay.
The main arc focuses on explaining the disappearance of Xiao Wuyi. Emperor Li Mao‘s decision to keep the soldier’s identity a secret serves as a military and personal protection strategy. The return of Xiao Wuyi‘s memory happens gradually, triggered by visual and auditory stimuli—the ribbon on the wishing tree and the drum rhythm. These elements show that the connection between the protagonists withstood physical trauma and amnesia.
Character fates
Xie Jiayu: Dedicates herself to spreading her forging knowledge, returns to the capital to lead the empire’s mining project, and reunites with Xiao Wuyi at the festival.
Xiao Wuyi: Survives the fall into the abyss, lives with amnesia under the identity of an imperial guard commander, and recovers his memory, reuniting with Xie Jiayu.
Li Mao: Becomes emperor, strengthens the Great Ye, drives development through mining, and protects Xiao Wuyi while he is without his memory.
Explanation of the final scene
The final scene takes place at the Festival of a Thousand Lanterns. By playing the drum with a specific rhythmic pattern, Xiao Wuyi establishes direct communication with Xie Jiayu, proving that his original identity has been restored. The embrace in the middle of the crowd visually confirms the resumption of their relationship. The festive setting concludes the narrative by marking the definitive transition from a period of war and mourning to a moment of stability for the protagonists and the empire.