Gakken Inc. (Shinagawa, Tokyo; Representative Director and President: Tatsuya Nanjo), a group company of Gakken Holdings Co., Ltd. (Shinagawa, Tokyo; Representative Director and President: Hiroaki Miyahara), launched 'Sweet Sweets Story: Princess Rose and the Sparkling Jewelry Cake' on May 1, 2026.

The children's book for preschoolers and early elementary students, 'Sweet Sweets Story: Princess Rose and the Sparkling Jewelry Cake,' has been released.

An exciting story filled with 'cuteness'

The story is set in the 'Sweets Kingdom.' Princess Rose, the protagonist, bakes a large cake to celebrate her best friend Powder-chan's birthday. However, on the morning of the party, a mishap occurs: the cake collapses and crumbles... That's when Lily, a small fairy, appears. It's a fun story depicting the thrilling process of making a 'one-of-a-kind' cake!

Recommended points of this book

① Full of illustrations of sweets and dresses, making it easy to read

Plenty of delicious-looking sweets and cute dress illustrations. Even children who are not used to reading can get absorbed in the story.

② A heartwarming and encouraging story

The birthday cake made for a friend collapses... Princess Rose and the characters are encouraged by their positive efforts to overcome such a mishap together.

③ Fun pages at the beginning and end. Includes a recipe to recreate the cake from the story!

In addition to pages introducing cakes and dresses, it includes a simple sweets recipe to make the key birthday cake from the story at home. You can fully enjoy the world of the story even after reading the book.

④ Comes with a message card and stationery

Includes a message card adorned with illustrations of sweets and characters, and stationery that can be colored.

[Product Overview]

'Sweet Sweets Story: Princess Rose and the Sparkling Jewelry Cake'

Author: Junko Yoshida, Illustrator: Coco Nekono

Price: 1,430 yen (tax included)

Release Date: May 1, 2026

Format: A5 size / 96 pages

E-book version: Available

ISBN: 978-4-05-206023-6

Publisher: Gakken Inc.

Target Readers: Preschoolers to early elementary students

Gakken Publishing Website: https://hon.gakken.jp/book/1020602300

[Click here to purchase this book]

・Amazon: https://www.amazon.co.jp/dp/4052060237/

・Rakuten Books: https://books.rakuten.co.jp/rb/18525081/

・7net: https://7net.omni7.jp/detail_isbn/9784052060236

<E-book version>

・Kindle: https://www.amazon.co.jp/dp/B0GYN9KG8X/

・Rakuten Kobo: https://books.rakuten.co.jp/rk/b5dd0ae48cae3ad28c85c349349b6fb8/

Gakken Inc.

https://www.corp-gakken.co.jp/ ・Representative Director and President: Tatsuya Nanjo ・Date of establishment: January 13, 2009 (Trade name changed on October 1, 2022) ・Capital: 50 million yen ・Location: 2-11-8 Nishi-Gotanda, Shinagawa-ku, Tokyo 141-8416 ・Business activities: Publishing and content business, global business, medical and nursing publishing and content business, kindergarten and school business, classroom-related business, EC and online business, advertising business.

GAKKEN HOLDINGS CO., LTD.

https://www.gakken.co.jp/ ・Representative Director and President: Hiroaki Miyahara ・Date of establishment: March 31, 1947 ・Capital: 19,817 million yen ・Sales: 199.1 billion yen, Consolidated subsidiaries: 82 companies (as of September 2025) Listed on the Prime Market of the Tokyo Stock Exchange (Securities Code: 9470) ・Location: 2-11-8 Nishi-Gotanda, Shinagawa-ku, Tokyo 141-8510 ・Phone number: 03-6431-1001 (main) ・Business activities: A holding company founded in 1946, engaged in education and medical welfare-related businesses. Education sector: Classroom and cram school businesses including 'Gakken Classrooms,' publishing and content businesses for educational materials, kindergarten and school businesses for textbooks and childcare supplies, etc. Medical and welfare sector: Service-oriented senior housing business, dementia group home business, childcare support businesses such as nurseries and after-school care.

FACT BOX

  • Source: PR TIMES
  • Category: New Product
  • Organizations: Amazon / Kindle