Mezue ahịrịokwu na-esonụ: Na 20 Eprel 1945, "I-121" na "I-122" ka e weghachiri na Submarine Division 33 na Kure Submarine Squadron. A kpọfere "I-121" na Maizuru Naval Base na 12 June 1945 ma nọrọ ebe ahụ ruo ọgwụgwụ nke Agha Worldwa nke Abụọ. Esemokwu ahụ kwụsịrị na 15 August 1945, na
Japan chịliri aka elu n'ụzọ iwu kwadoro na Septemba 2, 1945. "I-121" nyefere ndị Allies na Septemba 1945 na Maizuru.