Sumai-sensei's Adventure
2026-04-08 02:00:59

Exciting New Release: Surviving Dangerous Creatures with Sumai-sensei

Unveiling the Thrilling "Dangerous Creatures Survival Class"



Mark your calendars for May 29, as the highly anticipated book titled "Dangerous Creatures Survival Class with Sumai-sensei" hits the shelves! Leading the charge are the beloved figures from the popular YouTube channel Water Challenge, which boasts an impressive following of over 3.97 million people. This interactive survival guide is specially designed to engage kids while learning about a wide range of dangerous creatures through captivating illustrations and informative guides.

Engage with Stunning Creatures in a Fun Way



In this delightful addition, followers will embark on a gripping mission to capture dangerous creatures with the vibrant members of Sumai-school. From powerful terrestrial animals like lions and tigers to venomous beings such as king cobras and cane toads, and even fascinating aquatic species like sharks and electric eels, over 100 unique dangerous creatures are presented for adventure lovers to explore!

The book combines thrilling narratives alongside vivid photographs that allow readers—especially children—to delve into the enthralling world of these creatures. As the story unfolds, enjoy the witty exchanges among Sumai-sensei and the Sumai-school team, transforming learning into an exciting journey.

Exclusive Bonus Offers Available!



In addition to the enticing content, fans who purchase the book from various participating stores including Miraiya Bookstore, Kinokuniya Bookstore Group (select locations), or Rakuten Books will receive an exclusive sticker seal as a bonus! This campaign is sure to heighten excitement among fans.

Moreover, customers who buy previously published titles from Sumai-sensei’s series—including "So Much Fun, I'm Sorry! Sumai-sensei's Riddles"—at participating bookstores across the nation stand a chance to clinch an exclusive postcard. Stay tuned as details of the participating stores will be announced soon!

Who is Sumai-sensei and Water Challenge?



Sumai-sensei is the iconic character at the heart of the YouTube channel Water Challenge, which centers around engaging content and captivating adventures within the realm of the hit game, Minecraft. Known for the catchphrase, "Sumai-naaaaaaaaaaay!", Sumai-sensei and the quirky team of Sumai-school consistently provide laughter and excitement, making them a hit among children.

About the Series by Seitosha


  • - Title: So Much Fun, I'm Sorry! Sumai-sensei's Riddles
  • - Author: Water Challenge
  • - Publisher: Seitosha Co., Ltd.
  • - Price: ¥1,320 (¥1,200 + tax)
  • - Format & Pages: B6 size / 160 pages
  • - ISBN: 9784791634354

Book Details


  • - Title: Dangerous Creatures Survival Class with Sumai-sensei
  • - Author: Water Challenge
  • - Supervisor: Nozomi Obuchi
  • - Publisher: Seitosha Co., Ltd.
  • - Release Date: May 29, 2026 (Friday)
  • - Price: ¥1,518 (¥1,380 + tax)
  • - Format & Pages: A5 size / 160 pages
  • - ISBN: 9784791634989

For more details and to purchase, visit the following links:

Company Information


Company Name: Seitosha Co., Ltd.
Representative: Kazuki Wakamatsu
Address: 2-3-13 Yushima, Bunkyo-ku, Tokyo 113-0034
Business: Production and sale of books and e-publications
Website: Seitosha

For any inquiries related to the book, please contact:
Company Name: Seitosha Co., Ltd.
Contact Person: Kobayashi
Phone: 03-5800-3120
Email: [email protected]

This vibrant survival guide is not just educational but also an absolute thrill, blending learning with exploration to captivate young minds eager to unravel the mysteries of our dangerous, yet fascinating, natural world.


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Topics Entertainment & Media)

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