There is an ancient book record: "Lingyue Zhenren, the twelfth generation leader of Tianyong City in Kunlun Mountain, was a gifted man. Under him, Tianyong City flourished for hundreds of years. Lingyue was upright and benevolent throughout his life, with a chivalrous style, clear rewards and punishments, and won the hearts of the people. However, during his fifty-three years in office, the sect changed. The position of Elder Holding Sword remained vacant until the 13th generation leader came to the throne, and the only direct disciple of Ling Yue was appointed as Elder Holding Sword. One spring day, he was sitting quietly by the window with his eyes closed in the silent drizzle. He passed away at the age of 100 because he had obsessions in his heart and never became an immortal. "
Hundreds of years later, in the late Qing Dynasty, the elite detective An Yichen, the Ning family's bully Ning Zhiyuan, the mysterious perfume master An Leyan, and the mysterious Japanese girl Xiaoya Keiko, all met and unknowingly revealed the hidden secrets one by one.