A blue puzzle coloring book that brings deep peace and tranquility to the mind - Japanese Craft Book

Release Date: July 21, 2026
Language: Japanese
Length: 64 pages

Clear your mind with every stroke. A journey into a world of blue from the popular "Puzzle Coloring" series.

A new title themed around the color blue has arrived as a spin-off of the "Puzzle Coloring" series! This book features a variety of motifs that evoke the color blue, such as the sky, water, and the night.
While retaining the fun of completing a puzzle through coloring, this book allows you to experience the tranquility and comfort associated with the color blue.

In recent years, the coloring book market has seen growing demand not only for attractive designs but also for experiential value—such as relaxation, immersion, and a refreshing change of pace.
This book focuses on the color blue, which is known to calm the mind and foster a sense of relaxation and focus. It is designed for those who wish to enjoy a quiet moment of their own amidst the busyness of daily life.

This is a new type of themed puzzle coloring book that offers both the sense of accomplishment upon completion and a time to center your mind.