At the jonin (investiture) this year, Naomasa was appointed as the Bicchu no kami (the governor of Bicchu Province) along with Hideyoshi TOYOTOMI, Mitsuhide AKECHI and Hiromasa YANADA; he was then granted the family name of Harada.
この年の叙任で豊臣秀吉・明智光秀や簗田広正らに混じって備中守に任ぜられ、原田のカバネを下賜された。