 Nyorai kuenderera mberi kweiyi ndima - MunaNovember, Shiraiwa akahwina menduru yesirivheri pa2015-16 Japan Junior Championshipsshure kwaWakaba Higuchi. Kwapera mwedzi mumwe chete, paJGP Final, Shiraiwa akapedza ari wechishanu. Kuita kutanga kwake kuJapan Championships pamwero mukuru, akaisa 5th, uye akatumidzwa senhengo yevechidiki maOlympic uye vechidiki vepasi rose zvikwata. 