The return voyage with convoy HI-86 consisted of ten ships (4 tankers and 6 cargo ships) and the 101st Escort Group's five frigate CD "kaibokans", which departed Singapore on 30 December 1944. On 12 January 1945, shortly after departing Qui Nhon Bay, Indochina, bombers from the U.S Task Force 38 comprising the aircraft carriers , , , , , and attacked convoy HI-86 during the South China Sea raid, sinking most of the convoy's ships. "Kashii" was hit starboard amidships by a torpedo from a Grumman TBF Avenger, then a Curtiss SB2C Helldiver struck with two bombs aft, setting off the depth charge magazine. "Kashii" sank stern first at . Of "Kashii"s crew, 621 men went down with the ship and only 19 were rescued.