Mysterious Lotus Casebook (莲花楼)

Ten years after the legendary martial arts master Li Xiangyi vanished following an epic duel with his rival Di Feisheng, he reappears as a traveling doctor named Li Lianhua, living in a horse-drawn building called the Lotus Tower and longing for a quiet life. However, his peaceful existence is disrupted when a passionate young man, Fang Duobing, becomes suspicious of his skills and vows to expose him. Simultaneously, Di Feisheng reemerges into the martial world and immediately recognizes the unassuming doctor as his former rival. As they are drawn together by a series of strange murder cases, this unlikely trio forms a deep friendship and works together to solve mysteries and uncover a conspiracy that spans a decade, while Li Lianhua's past continues to haunt him.

40 episodes.

• Act 1: Reunion & Unlikely Bonds (Episodes 1-7): The story begins with the disappearance of Li Xiangyi and Di Feisheng, then jumps ten years later to Li Lianhua's life as a wandering doctor. A young man named Fang Duobing bumps into Li Lianhua and suspects him of being a quack. Di Feisheng returns to the martial arts world and quickly recognizes that Li Lianhua is his old rival. These three cross paths again during the Lingshan funeral case, forcing a reluctant partnership. They begin solving smaller cases, finding common ground in their work.
• Act 2: The Unmasking of Li Lianhua (Episodes 8-16): The trio is tasked with solving the case of the Poonu Yulin, which takes them into Yucheng. As they travel together, Fang Duobing grows increasingly suspicious of Li Lianhua's true identity, even as their camaraderie deepens. Di Feisheng, knowing the truth, constantly pushes Li Lianhua, forcing him to confront his physical decline due to the碧茶之毒 (Bicha poison) that is slowly killing him. They investigate more cases like the master of the Jixiong Manor.
• Act 3: Unraveling the Past (Episodes 17-32): The focus shifts to the mystery of Senior Shan Gudao, Li Xiangyi's brother. The trio uncovers clues that the past conflict was not a simple rivalry but a complex conspiracy. As Li Lianhua's health worsens, his secret identity is finally revealed to Fang Duobing and others, leading to a temporary fracture in their friendship. They race against time to find the remains of Shan Gudao and uncover the mastermind behind the decade-old betrayal.
• Act 4: Final Stand & Farewell to the Martial World (Episodes 33-40+番外): Li Lianhua confronts the main antagonist, Xuan Ye, in a final showdown. He exposes the truth behind Shan Gudao's death and the collapse of Sigu Sect. His identity as Li Xiangyi is fully revealed to the world, and he makes the ultimate sacrifice to save Fang Duobing and Di Feisheng. The series concludes with Li Lianhua seemingly walking away, leaving behind a legacy of chivalry and friendship, with Fang Duobing carrying on his spirit.