Inoue was born in what is now part of Kawanishi in Yamagata Prefecture, where his father was a pharmacist, who was also involved in an agrarian reform movement and who managed a local drama troupe.
Inoue was born in what is now part of Kawanishi in Yamagata Prefecture and who managed a local drama troupe. His father was a pharmacist. A pharmacist was also involved in an agrarian reform movement.