a_one is a Top Rated seller trusted by more than five thousand Amazon.co.jp customers in Japan. They have been selling on the Amazon.co.jp marketplace since 2011. They offer over ten thousand products from Tokuma Shoten/Tsai Fong Books, 宝島社, 小学館, ライツ社, 旺文社, and other brands.

They are a Top 5000 Amazon.co.jp seller, ranked 2,717th overall. They have improved from the 4,077th position last month. Seller rank is based on the number of positive reviews received during the last 30 days.

a_one business name, phone number, address, and email might be available on their profile on Amazon. For customer service, returns, refunds, and other issues, contact Amazon.co.jp.