Cube Perfume

In 2042, the underground archives of the Tokyo Metropolitan Police Department. When retired detective Sakuma Mamoru opened the last box of files, his nose suddenly caught a faint smell - mixed with old paper, dust, and some indescribable sweet and cold fragrance. His skinny fingers stopped on the label printed with "1977.1.4 Sodium Cyanide Coke Incident". Thirty-five years. From a young patrolman with black hair to a veteran police officer with gray temples, his life was cut into four parts by three unsolved crimes: the poisoned coke in 1977, the 300 million yen robbery in 1968 that he had heard his seniors talk about for the rest of his life before he joined the job, and the "Twenty-One Faces of the Weird Man" who treated the whole of Japan as a theater in 1984. He thought these secrets would follow him to the grave. Until yesterday, the artificial intelligence crime analysis system "Yayoi" made a faint beep while scanning three million old files that had expired. The associated keywords are not fingerprints, vehicles, or sighting descriptions. It's the smell.