【小説「声」の日本語ペーパー版がAmazon.comから全世界でお求めになれます!】yujin koyama で検索していただくか、koe tatta ichidono で検索していただければ、容易に見つかります。
小説「声」たった一度の愛に賭けた声:小山右人作:Amazon.com
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小説「声」たった一度の愛に賭けた声:小山右人作:Amazon.com
【Japanese version of the novel "Voice" is available worldwide from Amazon.com! 】 You can search by yujin koyama or you can search easily with koe tatta ichidono.
Novel "Voice" Voice betting on only one love:Yujin Koyama: Amazon.com