The name means spring moon. Harutsuki was an Akizuki-class destroyer, but she was built differently from her sisters, as a flagship for the Escort Fleet. Sasebo Naval Arsenal laid her down on 23 December 1943, launched her on 3 August 1944 and completed her on 28 December 1944.
She was completed too late for the carrier war and was struck from the Navy List on 5 October 1945. On 28 August 1947 she was turned over to the Soviet Union as war reparation and renamed Vnezapny. The Soviet Navy rearmed her with eight 102-millimetre guns, fifteen 25 mm guns and four 533-millimetre torpedo tubes. She became the training ship Oskol in 1949 and the target ship TsL-64 in 1955. She ended as the floating barracks PKZ-37 and was scrapped in 1969.
Sources: Wikipedia, Japanese destroyer Harutsuki, rewritten here.
