Morioka Domain
Fujimura was born in Hokkaidō. His grandfather was a former samurai of the Morioka Domain, and his father relocated to Hokkaidō after the Meiji Restoration as a director of the forerunner of Hokkaido Bank. Fujimura graduated from middle school in Sapporo, and then relocated to Tokyo where he attended a preparatory school for entry into Tokyo Imperial University.