Release of Series Volume 2 KADOKAWA Corporation announced the release of 'Math Adventure Manga Series: Hirameke! Sansu Dokan! 2 - Find the Secret of Zero' (Written by Ryu Gi-un and Hong Jae-chul, Manga by Moon Jong-hu, Supervised by Akitonton) on July 15, 2026. Pre-orders are currently being accepted at bookstores and online retailers across Japan.

About the Production Team This book is the second volume in a popular series that has surpassed 1.5 million copies sold globally, created by the original team behind the 'Survival' science manga series (Asahi Shimbun Publications). Following his entry into a virtual reality world in the first volume, the protagonist, Doki, arrives in a nation facing collapse in the second volume, where he must struggle to introduce the concept of 'zero.'

Educational Impact and Feedback Designed with a strong focus on narrative, the series makes math accessible even to children who struggle with the subject. Readers of the first volume have shared positive feedback, noting that it helped them understand the connection between daily life and math, and that the diagrams were easy to follow.

Author and Supervisor Profiles - Story: Ryu Gi-un, Hong Jae-chul - Manga: Moon Jong-hu - Supervision: Akitonton

Bibliographic Information - Title: 'Math Adventure Manga Series: Hirameke! Sansu Dokan! 2 - Find the Secret of Zero' - Price: 1,650 JPY (Base price 1,500 JPY + tax) - Release Date: July 15, 2026 - ISBN: 978-4-04-117563-7 - Publisher: KADOKAWA Corporation

FACT BOX

  • Source: PR TIMES
  • Category: New Product