Mezue ahịrịokwu na-esonụ: O ruru eru n'egwuregwu Olimpik nke afọ 2012 dị ka onye so n'òtù egwuregwu ndị Eshia nke nọ n'ọkwá kasị elu. N'asọmpi nke onwe ya, o meriri Lin Po Heung nke Hong Kong na agba nke mbụ, wee tufuo 8-14 nye onye mmeri Olympic ugboro ise Valentina Vezzali nke Italy. N'ime
ndị otu egwuregwu Japan meriri Russia na 17-45 na agba nke mbụ wee nọrọ na 7th mgbe asọmpi ndị a. Nishioka na-alụ ọgụ nanị megide Russia.