 He subsequently served on the cruiser "Azuma" and battleship "Kongō", and after a two-year tour as an instructor at the naval gunnery school from 1918–1920, he was reassigned to the battleship "Mutsu".In 1921, he served as aide-de-camp to Prince Higashifushimi Yorihito and was promoted to lieutenant commander.From 1921-1923, he attended the Navy Staff College, and on graduation, served two years on the light cruiser "Yura".