Michelle Topham 
Chinese Title: 君子盟 (Jūn Zǐ Méng)
English Title: A League of Nobleman
Also Known As: The Society of Four Leaves, Zhang Gong An (“The Case of Mr. Zhang”)
Genre: Historical, Mystery, Investigation, Detective
Episodes: 29
Director: Yang Fan and Jia Xiao Xiong
Screenwriters: Li Lin, Su Ming, Li Qiong
Production Companies: Tencent Penguin Pictures, CKF Pictures / CKF Spice Pictures
Plot Synopsis
A League of Nobleman follows Zhang Ping, an impoverished young scholar who comes to the capital to take the imperial examinations but survives by selling noodle dough on the street. Despite humble beginnings, Zhang Ping possesses sharp observational skills and a curious mind, making him naturally gifted at solving puzzles and mysteries.
One day, his path crosses with Lan Jue, the elegant and capable Minister of Rites, who appears to lead a smooth political life but harbors hidden burdens of his own.
When Zhang Ping’s deductive reasoning unexpectedly helps Lan Jue solve a case and even saves his life, the two form an unlikely partnership. Together, their contrasting personalities and complementary talents lead them to unravel complex court intrigues, looming conspiracies, and historical secrets — all while navigating political strife, personal loyalties, and their shifting views on justice.
At its heart, A League of Nobleman blends mystery, historical investigation, and character growth, showcasing how intellect and integrity can shine even in turbulent times.
Main Cast & Characters
Lead Cast
- Song Wei Long as Zhang Ping
- Jing Bo Ran as Lan Jue
Supporting Cast
- Guo Cheng as Chen Chou
- Wang Duo as Gu Qing Zhang
- Hong Yao as Wang Yan
- Shawn Zhang as The Emperor
- Li Terry as Lan Lin, Zhang Shu Lun as Yong Xuandi, Qiang Ba Cai Dan as Xu Dong, Shi Yue Ling as Tai Hou, and others populate the richly detailed historical world with varying loyalties and secrets.
Production Details
Original Work: The series is adapted from Zhang Gong An (张公案), a historical mystery novel centered on detective-style storytelling and clever problem-solving.
Production Companies: Tencent Penguin Pictures and CKF Pictures/CKF Spice Pictures — Major backing that ensured high production values and broad distribution.
Filming concluded prior to its release window, with the drama premiering at the start of 2023 and generating attention for its mystery elements and ensemble cast.
Episodes & Airing
- Total Episodes: 29
- Episode Length: 45 minutes
- Original Release: January 30th, 2023 – February 13th, 2023
- Original Network / Platform: Tencent Video
Where to Watch
China:
- Tencent Video — The official domestic streaming platform that broadcast the series upon release.
International Platforms:
- WeTV and Viki.
Why It’s Worth Watching
- Historical Mystery & Investigation: The series layers court intrigue with clever puzzle-solving, appealing to fans who enjoy thoughtful detective arcs in a period setting.
- Unlikely Partnership: The evolving dynamic between the free-spirited Zhang Ping and the poised Lan Jue provides both tension and heart throughout the drama.
- Rich Supporting Ensemble: A broad cast of characters, from court figures to everyday citizens, enhances the tapestry of political strife and hidden agendas.
- Compact & Rewarding: With 29 episodes, it’s a binge-friendly mystery that wraps its narrative tightly without excessive filler.
Articles About A League of Nobleman
A League of Nobleman: The most stylish mystery drama you didn’t know you needed
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