First-Ever Credit Card Member Benefit for 'audiobook.jp': Now Available for Diners Club Members. Unlimited Listening Plan Free for the First 60 Days, Plus a Monthly Gift of 3,000 Points

Sumitomo Mitsui Trust Club Co., Ltd. (President: Nobuaki Yamaguchi), issuer of Diners Club cards, has partnered with Otokobank Co., Ltd. (President: Yuya Kubota), operator of 'audiobook.jp' which boasts the No.1 lineup of audiobook titles (*1), to launch a special preferential service for Diners Club members. Diners Club members will receive a 60-day free trial for the audiobook.jp unlimited listening plan, plus a monthly gift of 3,000 yen worth of points usable within the audiobook.jp service (*2). This service began on April 1, 2026.

*1 Researched by Japan Marketing Research Organization in November 2023. Japanese audiobook title lineup survey. *2 Provided by Otokobank Co., Ltd.

Background of the preferential offer In the unlimited listening plan of audiobook.jp operated by Otokobank, a wide range of genres are currently being distributed. This includes the latest business books, bestselling novels, essays, educational books, classics, and qualification exam prep books, as well as the 'Listen to Nikkei' podcast delivering daily content from the Nihon Keizai Shimbun, and 'Speed Learning,' language learning materials that let you learn just by listening.

It can be used for 'listening while doing something' during commutes by train or car, exercising at the gym, or walking. This allows you to learn from various fields by ear and experience stories while utilizing your time effectively.

This is the first time audiobook.jp is providing a preferential service for credit card members. This special offer was introduced to allow Diners Club members—who are highly active and busy at the forefront of business yet highly interested in reskilling and a well-being lifestyle—to enjoy efficient 'reading while doing something'.

Details of the Audiobook Special Offer (1) audiobook.jp unlimited listening plan (*3) First 60 days free The initial free period, which is normally 14 days, is extended to 60 days exclusively for Diners Club members.

(2) Monthly gift of 3,000 yen worth of points A monthly gift of 3,000 yen worth of points that can be used on the audiobook.jp website will be provided. Diners Club members who are already using audiobook.jp can also use the point benefits.

For detailed terms and conditions, please refer to the benefit introduction page on the Diners Club website. https://www.diners.co.jp/ja/lifestyle/culture/audiobook.html