
Episodes

1. Episode 1
5 Jan 2026 · 14 min
Under tyrant Xie Cizhou’s brutal rule, assassin Si Yao survives a lethal trial to join Wuming Pavilion. A chance encounter with seemingly frivolous prince Xie Ciyuan sparks an alliance neither fully understands.

2. Episode 2
5 Jan 2026 · 14 min
Assassin bride Si Yao enters a marriage of deception with prince Xie Ciyuan — each plotting against the other, while tyrant Xie Cizhou watches with dangerous amusement.

3. Episode 3
5 Jan 2026 · 15 min
After a failed assassination, Si Yao and Xie Ciyuan perform a flawless cover-up. When he realizes she can calm the deadly parasite inside him, suspicion turns into something far more personal.

4. Episode 4
5 Jan 2026 · 13 min
While exposing corruption, Si Yao earns the quiet support of Xie Ciyuan. A hidden message reveals a darker conspiracy and missing women tied to powerful men.

5. Episode 5
5 Jan 2026 · 15 min
When poison leaves Si Yao near death, Xie Ciyuan drops his mask to save her. A desperate kiss binds their fates — as secrets between them deepen.

6. Episode 6
5 Jan 2026 · 15 min
As trust falters, Si Yao learns Xie Ciyuan is bound by a parasitic curse planted by his sister, Xie Cizhou — a weapon of control forged in blood.

7. Episode 7
5 Jan 2026 · 15 min
Compassion turns intimate as Si Yao soothes Xie Ciyuan’s agony. But clues hidden in her blood suggest a past tied to the mysterious Huanhua Valley.

8. Episode 8
5 Jan 2026 · 14 min
Searching for answers, Xie Ciyuan leads Si Yao toward her buried past but the name “Huanhua Valley” unlocks pain she cannot remember.

9. Episode 9
5 Jan 2026 · 14 min
Risking everything, Xie Ciyuan sneaks into the lion’s den to see his captive mother — promising freedom as rebellion begins to stir.

10. Episode 10
5 Jan 2026 · 14 min
A daring prison break exposes a larger conspiracy. Si Yao and Xie Ciyuan uncover ties between the Grand Tutor and the growing wave of disappearances.

11. Episode 11
5 Jan 2026 · 14 min
Under cover of plague, Si Yao and Xie Ciyuan infiltrate Lu City — where desperate parents reveal the terrifying scale of vanished daughters.

12. Episode 12
5 Jan 2026 · 14 min
Bloodied but unbroken, Xie Ciyuan closes in on a trafficking ring — as Si Yao uncovers a web linking officials, merchants, and hidden buyers.

13. Episode 13
6 Jan 2026 · 13 min
A shocking confession reveals Xie Cizhou uses young women’s blood for forbidden alchemy, forcing Si Yao and Xie Ciyuan toward open rebellion.

14. Episode 14
6 Jan 2026 · 13 min
When Shi An reveals Si Yao is truly Fang Muwan, lost heir of Huanhua Valley, her memory returns — along with the devastating truth that Xie Ciyuan used her heart’s blood.

15. Episode 15
6 Jan 2026 · 15 min
Heartbroken and betrayed, Fang Muwan walks away. Xie Ciyuan, freed from his curse, realizes the cost of survival may be losing her forever.

16. Episode 16
6 Jan 2026 · 14 min
Identity unmasked, Xie Ciyuan faces execution, until his mother sacrifices herself, breaking the last chain binding him to fear.

17. Episode 17
6 Jan 2026 · 13 min
Believed dead, Xie Ciyuan secretly escapes toward Huanhua Valley, while Fang Muwan collapses under the weight of grief and doubt.

18. Episode 18
6 Jan 2026 · 14 min
On the day Fang Muwan agrees to wed Shi An, a dying Xie Ciyuan crashes the ceremony — begging not for love, but for life.

19. Episode 19
7 Jan 2026 · 14 min
Forced to witness her marriage, Xie Ciyuan collapses in heartbreak, his damaged body finally surrendering to pain.

20. Episode 20
7 Jan 2026 · 13 min
Choosing love over duty, Fang Muwan stops her own wedding to save Xie Ciyuan, finally confronting feelings she can no longer deny.

21. Episode 21
7 Jan 2026 · 13 min
As jealousy simmers, Shi An challenges Xie Ciyuan’s presence. Torn between loyalty and love, Fang Muwan stands at the center of a fragile truce.

22. Episode 22
7 Jan 2026 · 14 min
Empowered by stolen blood, Xie Cizhou grows stronger, while Fang Muwan and Xie Ciyuan prepare for a final reckoning.

23. Episode 23
7 Jan 2026 · 14 min
War reaches Huanhua Valley. Amid betrayal and sacrifice, Fang Muwan falls into Xie Cizhou’s hands as allies perish.

24. Episode 24
7 Jan 2026 · 13 min
In a brutal final clash, Shi An sacrifices himself, Xie Cizhou falls, and love proves irreversible. Years later, Fang Muwan and Xie Ciyuan rule apart — bound by memory, not destiny.
Undercover Us Season 1: quick answers
How many episodes are in Undercover Us Season 1?
Season 1 of Undercover Us has 24 episodes, about 6 hours in total.
When did Undercover Us Season 1 come out?
Season 1 premiered on 5 Jan 2026.