A notebook for organizing your thoughts isn’t just about having paper to write on. In fact, just a small innovation in the rulings can surprisingly make organizing your thoughts much easier.
We’re introducing the famous Nakabayashi “Logical Notebook,” which we purchased at Daiso! We’ll review its surprising features and the appeal of getting this highly functional notebook for just 110 yen (tax included).
1. The Surprising Secret: The “3-Dividing Guideline”
The biggest feature of this notebook is its special ruling, which is not found in typical notebooks.
- 3-Dividing Guideline: There are two faint dotted lines between the main rulings. This allows you to divide each line into three equal parts.
- Ensuring Spacing: Thanks to this guideline, you can naturally secure about 1/3 of the space as an internal margin for each line, making it possible to write without crowding your words, resulting in an easy-to-read notebook.
- Optimal for English: This guideline is also useful when you want to distinguish between uppercase and lowercase letters when studying English.

—An example of the rulings and how the guidelines can be used. Note that vertical lines are also printed.
2. Vertical Lines for Consistent Paragraphs
Additionally, faint dotted lines are printed perpendicular to the horizontal rulings, allowing the vertical alignment of your lines to naturally stay straight.
- Clear Paragraph Separation: This makes it easy to keep the start of sentences (or paragraphs) and the alignment of charts and diagrams neat. Having both horizontal and vertical alignment greatly improves readability when you look back at your notes later.
3. Perfect for Creating Charts and Diagrams!
Having both vertical and horizontal dotted lines means the notebook can essentially be used like graph paper.
- Great for Figures and Graphs: When drawing flowcharts for work or creating diagrams for math or science, you can easily create neat figures and charts without needing a ruler by utilizing these vertical and horizontal lines.
4. Easily Divide and Organize Pages
There are small marks (like memory points) printed at the top and bottom of the pages, acting as a guide for dividing the notebook for various uses.
- Customizable for Purpose: Using this guide, you can divide the page into 2, 3, or 4 sections and organize different elements like “Date,” “Title,” and “Content” all within one page.
5. Amazing Value! Made in Japan, Thread-Bound, for 110 Yen
This highly functional “Logical Notebook” is B5 size with 40 sheets.
What’s even more surprising is that this notebook costs only 110 yen (tax included) and is Made in Japan. Since it is thread-bound, the pages are durable and won’t easily fall out, demonstrating high quality.

6. The Truth About Value! Comparing with Online Shopping
Let’s examine the price of this 40-sheet, 110-yen Daiso notebook from a cost-conscious perspective.
From what I’ve seen, it’s difficult to buy this 40-sheet notebook for under 110 yen online. However, there are some online shops where the same Logical Notebook in a 5-pack set of 30 sheets can be purchased for around 80 yen (tax included) per book.
How should we view this price difference?
- Daiso’s Strength: For needs like “I only need one right now,” “I don’t want to pay shipping,” or “I want to see the item before buying,” the convenience of getting it for 110 yen at Daiso is very valuable. The 40-sheet count is also appealing.
- Online Strength: If the goal is strictly the lowest unit price, buying in bulk online is certainly advantageous. However, this involves the hurdle of having to buy a minimum of five notebooks and factoring in the shipping cost.
Our family’s conclusion is that the value Daiso provides—allowing us to purchase this high-quality notebook individually, easily, and after seeing it in person—is extremely high.
📝 Summary
Of course, a notebook’s primary purpose is to organize your thoughts, and the goal isn’t just to “write neatly.” However, using a notebook with such clever rulings naturally leads to tidy organization, which in turn accelerates the clarity of your thoughts.
We highly recommend this Logical Notebook to anyone looking to neatly organize their ideas. If you see it at Daiso, be sure to check it out!
That’s all for today🌸
Have a wonderful day tomorrow! 🌈

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