Cast & Character List

Li Hong Yi as Fu Sheng
Fu Sheng is a young man consumed by a singular passion: the study of medicine. Often described as a "medical obsessive," he possesses god-tier skills in acupuncture, poison identification, autopsy, and pharmacological analysis. However, his quiet life is upended when he is wrongfully accused of being the murderer behind the infamous "Hundred Physicians' Sudden Death" case.
Desperate to prove his innocence, Fu Sheng follows clues left behind in his late master's belongings, leading him on a quest for a mysterious "Celestial Book" (Tian Shu). Throughout this journey, he evolves from a naive and socially awkward healer into the core investigator of the group, eventually shouldering the heavy responsibility of saving the world through his medical expertise.

Su Xiao Tong as Wen Yu
As the daughter of the Lord of Liangzhou, Wen Yu initially comes across as a pampered and sharp-tongued "little chili pepper" who isn't afraid to speak her mind. However, this fiery exterior hides a meticulous mind and exceptional strategic ability.
Far from being just a spoiled noblewoman, she leverages her family's influence to provide sanctuary for Fu Sheng, even helping him establish a medical clinic that serves as their base of operations for investigations. While she and Fu Sheng share a bickering, love-hate dynamic, Wen Yu proves to be an invaluable partner, frequently displaying extraordinary wisdom and the ability to control complex situations as they solve cases together.

Yu Cheng En as Gu Tian
On the surface, Gu Tian appears to be nothing more than a wealthy, idle playboy. However, this persona is merely a mask for his true identity: a master of intelligence gathering with roots as a traditional variety performer.
Drawing on his background in the "Hundred Entertainments" (Baixi), Gu Tian possesses a unique set of skills vital to the investigation team. He is a master of disguise and possesses a silver tongue, allowing him to navigate effortlessly through all levels of society—from the elite to the criminal underworld—to extract crucial information. His methods are unconventional and inventive; he even utilizes shadow puppetry as a means to transmit secret codes. With his specialized tactical approach to espionage, Gu Tian serves as an indispensable asset to the team.

Wang Zi Xuan as Ying Ying
A mysterious performer active within the Bufeng Zhuoying Tower, Yingying possesses a keen ability to spot the slightest traces of evidence and read the nuances of human behavior. She leverages her unique advantages to gather concealed clues, serving as a vital source of intelligence for the investigation team. Her contributions are instrumental in cracking the complex and bizarre murder mysteries they face.

Yu Xiang as Wen Jiu
As the elder brother of Wen Yu, Wen Jiu serves as a guard at the City Lord’s Mansion. He is defined by his steady temperament and a strong sense of responsibility.
Wen Jiu is the quiet strength behind the operation, constantly remaining by his sister's side to ensure her safety. His role extends beyond mere protection; he acts as the security detail for the entire investigation squad. Furthermore, he leverages his position to access resources from the City Lord’s Mansion to aid their inquiries, making him the team's most reliable shield and logistical supporter.

Peng Ya Qi as Tuo Ba Chuo
Portrayed by Peng Yaqi, Tuoba Ruo is an enigmatic figure whose true identity remains shrouded in secrecy. She is inextricably linked to several cases unfolding throughout the series, making her a person of significant interest. Her arrival introduces a volatile new variable to the central mystery of the "Heavenly Book" (Tian Shu). As various factions vie for power and control, Tuoba Ruo plays a pivotal role in the ensuing struggle, shifting the balance of power in unexpected ways.
