Saburo Shiroyama (1927–2007) was a Japanese novelist and a pioneer of business and economic fiction. Born in Nagoya, he served as a trainee in the Imperial Japanese Navy during the final months of World War II and later graduated from Hitotsubashi University. He taught economics at Aichi Gakugei University before devoting himself to writing. He received the Bungakukai New Writers Award for "Yushutsu" in 1957 and the Naoki Prize for "Sokaiya Kinjo" the following year. His fiction frequently portrayed people working within corporations, government bureaucracies, and other large organizations, helping establish economic fiction as a distinct genre in Japan. "Rakujitsu Moyu" received both the Yoshikawa Eiji Prize for Literature and the Mainichi Publishing Culture Award. The novel follows the life of former prime minister and foreign minister Koki Hirota, who was sentenced to death as a Class-A war criminal at the Tokyo Trial, depicting his diplomatic efforts, political choices, and responsibility as Japan moved toward war.
