“Her name was Hatsune Miku,” the old man whispered through the holo-call. His face was a patchwork of wrinkles and tear stains. “Not the hologram. Not the mascot. My Miku. She was a Vocaloid—a voicebank. My daughter, Chie, tuned her for fifteen years. When Chie died… the hard drive containing Miku’s unique voiceprint was stolen. I want her back.”
Instead, he sat down next to Reina. “The father doesn’t want to lock her away,” he said quietly. “He wants to say goodbye. He never got to. Chie died in a server fire. He never heard the last song she tuned.”
Kaito found her in a submerged concert hall, its ceiling leaking rainwater like a broken metronome. Rows of server racks hummed in the dark, each one glowing with a soft, colored LED: teal for Miku, orange for Rin, yellow for Luka. But in the center, on a pedestal, sat the black drive. It pulsed with a faint, arrhythmic light. the vocaloid collection
“You’re here for 047,” Reina said, not turning around. Her fingers hovered over a keyboard. “Listen first.”
As Kaito left the hall, the black drive pulsed one last time. And for a fleeting second, the rain outside synced with the rhythm of Chie’s piano. The whole world, for one bar, became a Vocaloid. “Her name was Hatsune Miku,” the old man
Kaito accepted the job for the money. He stayed for the mystery.
She pressed play.
They made a deal. Kaito would bring the father, not the police. Reina would let him sit in the submerged concert hall for one hour. He could listen to his daughter’s Miku sing the unfinished ballad. And when the hour ended, Reina would make a copy of slot #047—not for the archive, but for the old man’s locket-sized player.