Seventeen years of hatred have been honed into a blade, and beneath blood-red moonlight, a deadly symphony begins. Su Wan charges into Shen Yuhuai’s cage, fueled by revenge, only to discover that she is the prey. A bloodstained handkerchief reveals a long-buried vow, while the truth behind her family’s downfall coils by her pillow like a venomous snake. A piano key hides a secret key; a USB drive locks away the dead. Everyone she trusts wears a painted mask. As the countdown to the “Requiem” rumbles underground, she must wager her life, listen to the dead whisper their final words from beneath the throne of betrayal, and decipher the ultimate symphony of destruction.