Lin Shen can hear the frequency, but not the human heart; Cheng Yan can hear the justice, but not the truth.
An old case from twenty years ago left a "devil frequency" on the piano of the deceased Su Shi'an that only Lin Shen could analyze. As the investigation deepens, the retired detective dies mysteriously, the client Su Wan's memory is tampered with, and the charity organization called "Ding Mirror" is using the most elegant gesture to cover up the bloodiest purge.
From the dust in the archives to the resonance source in the basement, Lin Shen and Cheng Yan, a pair of complementary destiny partners, must decipher the bloody code left by Zhou Lan in a "muted" world.
This is a game about sound and a redemption of silence. When the mirror breaks, you will find that the scariest sounds often come from the most complete silence.
Concept: When the world tries to use money and power to buy everyone's silence, there are always people willing to be the disobedient "listener" and use their flesh and blood to capture the silent thunder that shatters lies.