Reborn + fake System + livestreaming + urban legend + single heroine. Su Mo is exceptionally gifted, with extraordinary hearing from childhood, but is shunned for exposing the truth. Reborn at the age of twelve, he saves Shen Mingxin, a girl trapped in a manhole, and unexpectedly unlocks the Tianxiang Sect's legacy of sound-reading techniques. He becomes Fang Zhenlong's apprentice, learning how to recognize people by the sounds they make. With memories from his previous life and his ability to read sounds, he averts a family crisis, saves Professor Lei from a plane crash ahead of time, and develops an AI assistant called Di Ting, bringing the metaphysical art of sound-reading together with technology.
Yet beneath the calm, dark currents are stirring. Li Gege, an overseas heir to the art of bone-reading, joins forces with foreign powers in a bid to steal the Tianxiang Sect's secret manual and pilfer China's AI technology. As Su Mo repeatedly clashes with Shen Mingxin, a state security agent, he discovers that she is the girl he saved as a child, and the voice of salvation he heard at his deathbed in his previous life. Together, they fight a spy conspiracy, uncover the secret of how tuning forks can reverse time and space, and stop a world-ending crisis involving sonic weapons.
From saving his family to protecting his country, Su Mo wields sound like a blade, exposing lies and discerning people's hearts. In the end, he chooses not to rewrite the past, instead making sound-reading techniques available to the public and passing them on in seclusion. The sacrifice and rebirth of the AI Di Ting affirm the belief that technology should serve the greater good. The wind sweeps through the forest of tuning forks, and heaven and earth echo back: all things have a voice, but it is the choices of the human heart that determine the fate of the world.
