If you have followed the capsule toy series Tsumugi Bako and its adventure game adaptation IZON., this is the book that opens up the whole world behind it. Across 288 pages you get the official setting materials for the 2025 release, including character and background making-of sections, early design proposals, and visuals published here for the first time.

The first half gathers the scenario and artwork that came with the original Tsumugi Bako capsules, collecting Chapter 1, Chapter 1 Izon, Tsumikobako, Tsumikobako Izon, Chapter 2, Chapter 2 Izon, and Chapter 3 in full. The second half turns to IZON. itself, walking you through how the project came together, character design, backgrounds, in-game art, and UI work. Interviews and comments from the creators and staff round out the volume.

The story follows Chijin, a strange girl with the power of creation, and Kyojin, a weapon capable of destroying anything. Two opposing forces who come to understand and depend on one another as they push through a decadent, melancholy, beautiful world. The book gives you the visual groundwork for all of it.

The text is in Japanese, but the artwork, design sheets, and process material carry the book on their own. By Yoshi., published by Born Digital. Brand new, 2025 publication.

Language: Japanese  |  288 pages  |  Size: 29.7 × 21 × 2 cm  |  Born Digital  |  2025

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