audiobook.jp Launches First Credit Card Member Privilege for Diners Club Members: 60-Day Free Unlimited Plan and 3,000 Monthly Points Awarded

Sumitomo Mitsui Trust Club Co., Ltd. (President: Nobuaki Yamaguchi), which issues Diners Club cards, has partnered with Otobank Co., Ltd. (President: Yuya Kubota), the operator of "audiobook.jp", the No. 1 service in terms of the number of audiobook titles available in Japan (※1), to provide a special preferential service for Diners Club members. Diners Club members will receive a 60-day free trial of the audiobook.jp unlimited listening plan for the first time, and will also receive 3,000 yen worth of points usable within the audiobook.jp service every month (※2). This service commenced on April 1, 2026.

※1 Survey conducted by Japan Marketing Research Organization in November 2023. Survey on the number of Japanese audiobook titles.

※2 Provided by Otobank Co., Ltd.

■ Background of the Preferential Offer

The unlimited listening plan offered by audiobook.jp, operated by Otobank, features a wide range of titles including the latest business books, best-selling novels, essays, educational books, classics, and materials for qualification exams. It also delivers daily content from the Japan Economic Journal through its podcast "Kiku Nikkei" and language learning materials "Speed Learning" that can be absorbed passively.

Users can enjoy "listening while doing" during their commutes by train or car, or while exercising at the gym or walking. This allows them to effectively utilize their time to learn about various fields through listening or to immerse themselves in stories.

This is the first time audiobook.jp has offered a preferential service to credit card members. To provide Diners Club members, who are active professionals and highly interested in reskilling and well-being, with an enjoyable and efficient "while-you-read" experience, this special offer has been created.

■ Details of the Special Audiobook Offer

(1) audiobook.jp Unlimited Listening Plan(※3): First 60 Days Free

The initial free period, normally 14 days, will be extended to 60 days exclusively for Diners Club members.

(2) 3,000 Yen Worth of Points Presented Monthly

Points usable on the audiobook.jp website will be presented monthly, equivalent to 3,000 yen.

Existing audiobook.jp users who are also Diners Club members can also take advantage of the point benefit.

For detailed application conditions, please refer to the benefits introduction page on the Diners Club website.

https://www.diners.co.jp/ja/lifestyle/culture/audiobook.html

※3 Details of the "audiobook.jp" Unlimited Listening Plan

This is an audiobook plan for 1,330 yen (tax included) per month, offering unlimited listening to eligible titles. It features a wide range of audio content, primarily business books, but also novels, radio dramas, news, and rakugo storytelling.

https://audiobook.jp/user/membership/options/unlimited

Diners Club will continue to strive to expand preferential benefits and services that enrich the lives of its members.

■ About Diners Club

Diners Club is the world's first credit card brand, founded in the United States in 1950. In Japan, Sumitomo Mitsui Trust Club Co., Ltd. is the sole issuer and operator. It does not impose uniform limits on spending, accommodating high-value transactions, and offers premium services that enrich the lives of its card members, such as airport lounge access, preferential rates at restaurants and hotel groups, and concierge services.

https://www.diners.co.jp/ja/pvt.html

■ About Otobank Co., Ltd.

Otobank operates businesses centered on audio content, aiming to achieve "the creation of a culture of listening," "accessibility for the visually impaired," and "the promotion of publishing culture." It is one of Japan's largest audiobook companies, boasting the largest number of titles distributed. The company partners with over 500 publishers and its main businesses include selling audiobooks through "audiobook.jp", Japan's leading audiobook distribution service, as well as promoting books through the online book guide "Sinkan JP" (https://sinkan.jp/).

https://www.otobank.co.jp/