Kyohei SakaguchiField SkyA6 Original Size
- 2026 New
He doesn’t construct buildings, yet he’s an architect. He writes, sings, photographs, and paints. Kyohei Sakaguchi has continued creating in all these forms—effortlessly, like breathing. This Hobonichi Techo cover features one of his pastel paintings.
Living in Kumamoto Prefecture, Sakaguchi began growing vegetables on a plot he rented in a community garden in 2020. On his way to the garden and while tending his plot, he captures the scenery with his smartphone. He uses these photos as references for his pastel artwork.
This picture, “Field Sky,” was drawn on October 17, 2021. The tall autumn sky glows pale blue, with dry air and white clouds swelling upward. The trees swaying in the wind, the strong, sprawling branches and leaves stretching into the vast sky—all radiate the vibrant force of nature.
In his essay “The Path to the Field,” featured in the artbook Pastel, Sakaguchi writes,
“Like brushing my teeth, washing my face, or taking a bath, I go to the field and draw with pastels.”
We hope that opening this techo will become just as naturally integrated into your daily life.
On the Original-size cover, the picture is laid out to fill the surface generously. The cool blue sky, white clouds, and deep green trees together tell the story of a sky over a fertile field.
Though almost photographic in its precision, a closer look reveals the powdery texture of the pastels—the gentle smudges and strokes made by hand give the piece a warm, tactile feel. To capture this texture, the artwork is printed on fine-grained, delicate polyester fabric.
The interior is made of white faux leather, resembling the paper used for pastel drawings. The bookmark is a soft, cool gray to complement the overall tone. 
A portion of the picture is also printed onto the butterfly-stopper pen holder.
Sakaguchi is someone who excels at continuing—whether it’s drawing, writing, or making music—but you get the sense he’d gently remind you: “Write when you feel like it. Don’t force it when you need a break. That’s perfectly okay.”
Look up, and there’s the sky. Look down, and there’s a drawing of the sky.
This cover carries the promise of bright, clear days ahead.
There’s also a notebook titled A Notebook to Help Me Remember, featuring another pastel work by Sakaguchi. It has the same cover design as the Weeks version. The horizontal A5 size includes light blue grid pages inspired by the color of the sky, printed on Tomoe River paper—the same as is used in Hobonichi Techo books.
We also recommend Pastel, an artbook featuring 126 of Sakaguchi’s works printed at actual size. The landscapes he captures through careful observation remain fresh no matter how many times you revisit them—a private gallery you can keep by your side.
About Kyohei Sakaguchi
Born in Kumamoto Prefecture in 1978. Graduated in 2001 from the Department of Architecture from Waseda University’s School of Science and Engineering. Participated in many fields, including writing, painting, music, and architecture. Publicly shared that he lives with bipolar disorder, and has been running a crisis line “Inocchi no Denwa” on his personal cell phone since 2012 to take calls from anyone contemplating suicide.
Introduction to the Kyohei Sakaguchi series products
(Hobonichi Techo 2026 lineup)
Staff List
- Photographer
- Styled Images: Jin Yamamoto / Product Detail: Hiroyuki Oe
- Stylist
- Reiko Ogino
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Specifications*Specifications may vary slightly
- Cover
Size H: 165 x W: 244 x T: 3 mm / H: 6.5" x W: 9.6" x T: 0.1" Weight Approx. 100 g Main material Exterior: Polyester / Interior: PU Compatible Techo Books 
Planner (A6)
1 page per day English edition
Original (A6)
1 page per day
Original Avec (A6)
1 page per day 6-month book
Day-Free
Monthly notebook
Planner | One-Page-Per-Day TypeEnglish
type Monday Start (English) Size A6
H: 148 x W: 105 x T: 15 mm /
H: 5.8" x W: 4.1" x T: 0.6"
*Specifications may vary slightlyWeight Approx. 190 g Dates Jan 2026 - Dec 2026 - The English-version daily techo with a refined design
- This compact A6 size techo has spacious daily pages and a simple graph-paper design that offers plenty of freedom to draw, paste, and write.
- Daily pages
- Yearly calendar
- Yearly index
- Monthly calendar
- Memo pages
Original | One-Page-Per-Day TypeStandard Edition (Japanese / English) / One Piece Edition (*1)
type Monday Start (Japanese)
Sunday Start (Japanese)
Monday Start (English)Size A6
H: 148 x W: 105 x T: 15 mm /
H: 5.8" x W: 4.1" x T: 0.6"
*Specifications may vary slightlyWeight Approx. 195 g Dates Jan 2026 - Dec 2026 (Jan start)
Apr 2026 - Mar 2027 (Apr start)- A classic easy-to-use techo
- This compact A6 size techo has spacious daily pages and a simple graph-paper design that offers plenty of freedom to draw, paste, and write.
- Daily pages
- Yearly calendar
- Yearly index
- Monthly calendar
- Memo pages
*1 Also compatible with the One Piece Edition Original Book.
Original Avec | One-Page-Per-Day Type (2-Book Set)Japanese
type Monday Start (Japanese) Size A6
Each Book: H: 148 x W: 105 x T: 8 mm /
H: 5.9" x W: 4.1" x T: 0.3"
*Specifications may vary slightlyWeight Each Book: Approx. 110 g Dates Book 1: Jan 2026 - June 2026
Book 2: July 2026 - Dec 2026- Each 6-month daily techo is thin and light for easy carry
- This techo splits the year into two 6-month books, making it easy to carry while keeping the same page design and layout as the standard edition.
- Daily pages
- Yearly calendar
- Yearly index
- Monthly calendar
- Memo pages
Day-Free | Monthly Techo + NotebookJapanese
type Monday Start (Japanese) Size A6
H: 148 x W: 105 x T: 8 mm /
W: 4.1" x H: 5.9" x T: 0.3"
*Specifications may vary slightlyWeight Approx. 110 g Dates Dec 2025 - Mar 2027 - A monthly notebook with undated pages to write freely
- This techo starts with monthly calendars and ends with undated graph paper pages so you can write whenever you want, and as much as you want.
- Monthly calendar
- Yearly calendar
- Yearly index
- Graph paper notebook pages
- Book (Original English Edition / English / January Start)
Size A6 size
H: 148 x W: 105 x T: 15 mm / H: 5.8" x W: 4.1" x T: 0.6"
*Actual book size may vary slightlyWeight Approx. 195 g Language English Pages 464 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 3.7 mm
*Monthly calendar pages are 3.45 mmStart of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Dec. 2025 - Mar. 2027 (8 pages) Monthly Calendar Dec. 2025 - Mar. 2027 (32 pages) Daily Pages Jan. 1 - Dec. 31, 2026 (377 pages)
*A page is included at the beginning of each month to help in planning ahead.
*Every two-page spread includes one daily quote.
*Includes a mini monthly calendar at the bottom right of every two-page spread (Monday-start).
*Additionally, a blank two-page spread is featured at the beginning to provide a free area when starting out the book.Daily Quotes One quote per two-page spread (English) Weekly Pages Not included Memo Pages 17 pages Bonus Pages Time Table / Graph Paper / Favorites / My 100 / Memories 2026 / 12 Switches to Help You Focus / For a Comfortable Night’s Sleep / Words to Remember / 365 Days Check-Off Sheet / Looking Back at the Year 2026 / Getting the Most Out of Your Hobonichi Techo / Gifts / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars) / Moon phase (daily pages include every phase, monthly calendars only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Planner / English / January Start)
Size A6 size
H: 148 x W: 105 x T: 15 mm / H: 5.8" x W: 4.1" x T: 0.6"
*Actual book size may vary slightlyWeight Approx. 190 g Language English Pages 448 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 4 mm Start of Week Monday-start week Yearly Calendar 2026, 2027 Yearly Index Dec. 2025 - Mar. 2027 (8 pages) Monthly Calendar Dec. 2025 - Mar. 2027 (32 pages) Daily Pages Jan. 1 - Dec. 31, 2026 (377 pages)
*A page is included at the beginning of each month to help in planning ahead.
*Every two-page daily page spread includes one daily quote.
*Includes a mini monthly calendar at the bottom right of every two-page spread (Monday-start).
*Additionally, a blank two-page spread is featured at the beginning to provide a free area when starting out the book.Daily Quotes One quote per two-page spread (English) Weekly Pages Not included Memo Pages 14 pages Bonus Pages Important Contacts / International Size Charts / The Ultimate Packing List / My 100 / Memories 2026 / Mochi - Japan’s Favorite Sticky Treat / Shinkansen - Travel Japan on the Bullet Train / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars and daily pages) / Moon phase (daily pages include every phase, monthly calendars only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Original / Japanese / January Start)
Size A6 size
H: 148 x W: 105 x T: 15 mm / H: 5.8" x W: 4.1" x T: 0.6"
*Actual book size may vary slightlyWeight Approx. 195 g Language Japanese Pages 464 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 3.7 mm
*Monthly calendar pages are 3.45 mmStart of Week Monday-start week or Sunday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Dec. 2025 - Mar. 2027 (8 pages) Monthly Calendar Dec. 2025 - Mar. 2027 (32 pages) Daily Pages Jan. 1 - Dec. 31, 2026 (377 pages)
*A page is included at the beginning of each month to help in planning ahead.
*All daily pages include daily quotes.
*Includes a mini monthly calendar at the bottom right of every two-page spread (Monday- / Sunday-start).
*Additionally, a blank two-page spread is featured at the beginning to provide a free area when starting out the book.Daily Quotes One per day (Japanese) Weekly Pages Not included Memo Pages 15 pages Bonus Pages Time Table / Graph Paper / Favorites / My 100 / Memories 2026 / 12 Switches to Help You Focus / For a Comfortable Night’s Sleep / Solar Terms / Emergency Preparedness / Conversion Chart / Getting the most of Hobonichi / Gifts / Age Table / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars) / Old lunar calendar / Rokuyo (traditional Japanese lunisolar calendar) (listed on monthly calendars) / Solar terms / Japanese holidays / Moon phase (daily pages include every phase, monthly calendars only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Original Avec / Japanese / January Start / 2-Book Set)
Size A6 size x 2 books
Each Book: H: 148 x W: 105 x T: 8 mm / H: 5.9" x W: 4.1" x T: 0.3"
*Actual book size may vary slightlyWeight Each Book: Approx. 110 g Language Japanese Pages Each Book: 240 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 3.7 mm
*Monthly calendar pages are 3.45 mmStart of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Book 1: Dec. 2025 - Mar. 2027 (8 pages)
Book 2: Jun. 2026 - May 2027 (6 pages)Monthly Calendar Book 1: Dec. 2025 - Jul. 2026 (16 pages)
Book 2: Jun. 2026 - Jan. 2027 (16 pages)Daily Pages Book 1: Jan. 1 - June 30, 2026 (187 pages)
Book 2: July 1 - Dec. 31, 2026 (190 pages)
*A page is included at the beginning of each month to help in planning ahead.
*All daily pages include daily quotes.
*Includes a mini monthly calendar at the bottom right of every two-page spread (Monday-start).
*Additionally, a blank two-page spread (three pages for Book 2) is featured at the beginning to provide a free area when starting out the book.Daily Quotes One per day (Japanese) Weekly Pages Not included Memo Pages Book 1: 2 pages
Book 2: 0 pagesBonus Pages Time Table / Graph Paper / Favorites / My 100 / Memories 2026 / 12 Switches to Help You Focus / For a Comfortable Night’s Sleep / Solar Terms / Emergency Preparedness / Conversion Chart / Getting the most of Hobonichi / Gifts / Age Table / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars) / Old lunar calendar / Rokuyo (traditional Japanese lunisolar calendar) (listed on monthly calendars) / Solar terms / Japanese holidays / Moon phase (daily pages include every phase, monthly calendars only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Original - One Piece Edition / Japanese / January Start) *On sale October 1
Size A6 size
H: 148 x W: 105 x T: 15 mm / H: 5.8" x W: 4.1" x T: 0.6"
*Actual book size may vary slightlyWeight Approx. 195 g Language Japanese Pages 464 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 3.7 mm
*Monthly calendar pages are 3.45 mmStart of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Dec. 2025 - Mar. 2027 (8 pages) Monthly Calendar Dec. 2025 - Mar. 2027 (32 pages) Daily Pages Jan. 1 - Dec. 31, 2026 (377 pages)
*A page is included at the beginning of each month to help in planning ahead.
*All daily pages include daily quotes.
*All daily pages include character names of those who celebrate their birthday that day (as of Vol.110)
*Additionally, a blank two-page spread is featured at the beginning to provide a free area when starting out the book.Daily Quotes One per day (Japanese / One Piece edition) Weekly Pages Not included Memo Pages 12 pages Bonus Pages One Piece Chronology / One Piece Trivia You’ll Want to Share Tomorrow / The Fluffy Animal Encyclopedia of One Piece / WANTED / Time Table / Favorites / My 100 / Solar Terms / Emergency Preparedness / Gifts / Age Table / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars) / Old lunar calendar / Rokuyo (traditional Japanese lunisolar calendar) (listed on monthly calendars) / Solar terms / Japanese holidays / Moon phase (daily pages include every phase, monthly calendars only include full and new moon)
- Book (Day-Free A6 size / Japanese / Monthly)
Size A6 size
H: 148 x W: 105 x T: 8 mm / W: 4.1" x H: 5.9" x T: 0.3"
*Actual book size may vary slightlyWeight Approx. 110 g Language Japanese Pages 240 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 3.7 mm
*Monthly calendar pages are 3.45 mmStart of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Dec. 2025 - Mar. 2027 (8 pages) Monthly Calendar Dec. 2025 - Mar. 2027 (32 pages) Daily Quotes Included (Japanese) Graph Paper 171 pages Bonus Pages Time Table / Graph Paper / Favorites / My 100 / Memories 2026 / 12 Switches to Help You Focus / For a Comfortable Night’s Sleep / Solar Terms / Emergency Preparedness / Conversion Chart / Getting the Most of Hobonichi / Gifts / Age Table / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars) / Old lunar calendar / Rokuyo (traditional Japanese lunisolar calendar) (listed on monthly calendars) / Solar terms / Japanese holidays / Moon phase (Full and new moon listed on monthly calendars) Other See the Exploring Each Type page for more details
User recommendations
If you’ve used any of these products, we welcome your notes on what you like about them or what led you to buy them so we can share it with customers who are currently considering these products. We’d also love to welcome comments from customers who purchased their techo outside the Hobonichi Store or received their book as a gift.
Please Read Before You Buy
We’ve compiled a list of warnings, potential issues, and tips to keep in mind for this particular product. Additionally, the color of the product may be slightly different in actuality than compared to how it appeared on a computer or smartphone screen.
- Cover may contain variations in stitching or loose lining
Due to the structure of the cover that opens flat 180 degrees, exterior stitching areas may appear puckered and lining material may be loose.
- Pen holder fits pens up to 13.5 mm wide
The pen holder is designed to fit the 12.2 mm (0.48") diameter Jetstream pen offered as a free Hobonichi Store Exclusive Bonus. Pens with certain shapes and materials may be difficult to pull through the holder. The holder can fit pens up to 13.5 mm (0.53") in diameter.
- Color and print may vary slightly
The cover's color and print pattern are created by dyeing or printing onto white fabric. While we take care to ensure consistency during production, slight variations in color or pattern may occur between individual items. This may also happen across a single cover, such as a pocket compared to the rest of the cover. Minor print blurring or uneven coloring may also be present. In addition, on rare occasions, there may be small black or white dots visible on the print. This is an unavoidable aspect of the manufacturing process.