The Nagara-class cruisers proved useful in combat operations ranging from the Aleutian Islands to the Indian Ocean throughout World War II.

Most served as flagships for destroyer or submarine squadrons, and were deployed for transport or local defense missions.

A final three 5,500 ton class light cruisers authorized under the 8-4 Fleet Program were ordered by the Imperial Japanese Navy in 1920.

The Nagara-class hull design was based on a 5,500 ton nominal displacement, with a high freeboard and light bridge structure, behind which was a tripod mast with the fire control platform and two searchlights, the same as the Kuma class.

[3] The propulsion system for the Nagara class was based on four axial deceleration turbines with 12 boilers, providing 90,000 hp (67,000 kW).

[3] A major difference from the Kuma class was in the configuration of the bridge, which incorporated an aircraft hangar.

[3] Near the start of World War II, Abukuma and Kinu were scheduled to be fitted as flagships for destroyer squadrons, with the new Type 93 torpedoes.