Name Translation: "Young Leaves"
Initial Command Structure:
Ship's captain: Lieutenant Commander Kuroki Masakichi . Assigned to Desdiv 21 (WAKABA, HATSUHARU, NENOHI, HATSUSHIMO), Desron 1, First Fleet. Initially (and most-often thereafter) served as Desdiv 21 flagship.
Desdiv 21 remained in Japanese home waters, guarding battleships and conducting antisubmarine patrols.
Desdiv 21 departed Tokuyama to meet returning Pearl Harbor Striking Force, then escorted it into Hashirijima.
14-22 January 1942:
Desdiv 21 escorted tanker convoy from Tokuyama to Davao.
Desdiv 21 with Kendari invasion force.
Desdiv 21 (minus HATSUHARU) with Makassar invasion force.
Desdiv 21 (minus HATSUHARU) with Bali/Lombok invasion force.
28 February-1 March:
In Bali Strait, assisted HATSUSHIMO in sinking a Dutch merchant ship; Desdiv 21 later engaged but failed to intercept four U.S. destroyers escaping from the Java Sea.
Desdiv 21 steamed from Makassar to Sasebo, then docked for maintenance.
With ABUKUMA, Desdiv 21 departed Ominato, escorting Adak-Attu Attack Force in Aleutians operations. Attu occupied on 7 June; Adak occupation cancelled.
Patrolled in Attu-area.
With ABUKUMA and NENOHI, scouted Amchitka Island for possible airfield sites.
Patrolled in Kiska-area.
18 July-8 August:
Docked at Yokosuka for maintenance.
Steamed from Yokosuka to Paramushiro, then resumed Northern Area patrol/escort duties.
Transport run from Paramushiro to Attu and Kiska.
30 September-3 October:
Transport run from Shimushu to Kiska.
Transport run from Shimushu to Kiska.
With HATSUSHIMO, escorted ABUKUMA, KISO and TAMA on troop transport run from Paramushiro to Attu.
Lieutenant Commander Kuroki relieved by Lieutenant Commander Suetsugu Nobuyoshi  (prev. C.O. OKIKAZE).
With HATSUSHIMO, transport run from Shimushu to Kiska.
Transport run from Paramushiro to Attu.
30 November-3 December:
Escorted ABUKUMA and KISO on troop transport run from Paramushiro to Kiska.
14 December 1942-9 January 1943:
At Sasebo for maintenance and refitting: twin 25mm machine guns replace single 40mm abreast aft funnel.
Steamed from Sasebo to Ominato, then resumed Northern Area patrol/escort duties.
31 January-4 February:
Escorted ASAKA MARU on transport run from Paramushiro to Kiska.
With HATSUSHIMO, escorted KISO and SAKITO MARU on transport run from Paramushiro to Kiska and back.
26 March: Battle of the Komandorskis
With HATSUSHIMO, part of Fifth Fleet cover force: during escort of troop convoy from Paramushiro to Attu (aborted), engaged U.S. cruiser-destroyer group. Launched torpedoes without effect.
Minor damage: in collision with IKAZUCHI.
31 March-3 April:
With HATSUSHIMO, escorted NACHI and MAYA from Paramushiro to Yokosuka, then docked for repairs.
Desron 1 reassigned to Fifth Fleet.
Departed Yokosuka, then resumed Northern Area patrol/escort duties.
With HATSUSHIMO, escorted convoy from Ominato to Paramushiro.
28 June-2 July:
Escorted convoy from Paramushiro to Ominato.
Initial troop evacuation run to Kiska, aborted due to weather.
Second troop evacuation run to Kiska. With HATSUSHIMO, NAGANAMI, SHIMAKAZE and SAMIDARE, assigned to screening unit under Comdesdiv 21 Captain Amano Shigetaka . Significant damage: on 26 July in fog-induced chain-reaction collision when rammed near stern by HATSUSHIMO; detached to return to Paramushiro. Captain Amano transferred to SHIMAKAZE to continue mission.
9 September-16 October:
At Sasebo for repairs and refitting: X turret removed/replaced by triple 25mm machine gun mount; twin 25mm machine guns added on bandstand forward of bridge; Type 22 radar mounted on foremast.
Lieutenant Commander Suetsugu relieved by Lieutenant Commander Ninokata Kanehumi  (prev. C.O. NAGATSUKI).
16 October-13 November:
Resumed Northern Area patrol/escort duties, then returned to Kure, rejoining Desdiv 21 there.
24 November-3 December:
Desdiv 21 (WAKABA, HATSUHARU, HATSUSHIMO) escorted HIYO from Kure via Manila to Singapore.
Desdiv 21 escorted HIYO from Singapore via Tarakan and Palau to Truk.
24-29 December 1943
Desdiv 21 escorted ZUIHO and UNYO from Truk to Yokosuka.
1 January 1944:
Desdiv 21 reassigned directly to Combined Fleet Headquarters.
With NOWAKI and MAIKAZE, Desdiv 21 escorted ATAGO, ZUIHO, and UNYO from Yokosuka to Truk.
Desdiv 21 departed Truk escorting ZUIHO and UNYO. (UNYO torpedoed on 19 January and detached to Saipan with HATSUSHIMO.) Continued with ZUIHO to reach Yokosuka.
29 January-16 February:
With HATSUHARU, escorted ZUIHO and CHIYODA from Yokosuka to Truk and back.
At Sasebo for maintenance.
With HATSUHARU, steamed from Sasebo to Ominato, then resumed Northern Area patrol/escort duties.
At Ominato for maintenance: two single 25mm machine guns added abreast bridge bandstand mount.
Arrived in Yokosuka from Ominato.
At Yokosuka for maintenance and refitting: ten single 25mm and four 13mm machine guns added along length of ship.
With HATSUHARU, transport run from Yokosuka to Iwo-jima.
Transport run from Yokosuka to Iwo-jima.
20 July-11 August:
At Yokosuka for maintenance and refitting: Type 13 radar mounted on mainmast.
With HATSUHARU, escorted YAMASHIRO and UNYO from Yokosuka to Kure.
At Kure for maintenance.
16 August-21 September:
With HATSUHARU, escorted convoys from Kure to Formosa and Luzon and back.
At Kure for maintenance and refitting: another five 25mm machine guns believed added.
Desdiv 21 escorted NACHI and ASHIGARA from Kure via Amami-O-Shima to Mako (Pescadores), then was detached to Takeo, Formosa.
Desdiv 21 performed aircrew (ground-support units of 2nd Air Fleet) transport run from Takeo to Manila, then departed to join Admiral Shima's 2nd Diversion Attack Force.
24 October: Battle of Leyte Gulf
Sunk: in attack by aircraft from USS FRANKLIN (CV-13); struck by one or two bombs, sank in 45 minutes off the west coast of Panay (11-36 N, 121-36 E); 42 killed, 27 injured. HATSUSHIMO rescued 74 survivors and HATSUHARU 78, including Comdesdiv 21 (Captain Ishii Hisashi ) and Lieutenant Commander Ninokata.
10 December 1944:
Removed from Navy List.