How Many Kilometers From Home? Volume 1 Launches With a Relaxed Cycling 4-Koma Story

How Many Kilometers From Home?, the English phrase printed on the cover of Japanese manga 『ウチから何キロメートル？』, received its first collected volume on September 26, 2026. Created by 蚕二号, the series is published by Houbunsha under its Manga Time KR Comics label, with Volume 1 standing out through a vivid yellow cover featuring its characters and bicycles.

The story centers on Koyomi Yaguruma, a woman happily enjoying a messy and unmotivated life on her own. Things begin to change when her younger sister arrives and encourages her to start cycling. What initially feels like little more than exhausting exercise gradually turns into something Koyomi genuinely enjoys, creating a laid-back comedy about sisters, friends and the distances she slowly becomes willing to travel.

Quick Summary

• Japanese title: ウチから何キロメートル？
• English wording printed on the cover: HOW MANY KILOMETERS FROM HOME?
• Format: manga
• Structure: 4-koma
• Main themes: cycling / slice of life / comedy
• Manga creator: 蚕二号
• Publisher: Houbunsha
• Magazine: Manga Time Kirara
• Collected-volume label: Manga Time KR Comics
• Latest collected volume: Volume 1
• Release date: September 26, 2026
• Status: released
• Official print price: ¥1,100 including tax
• Digital price: ¥1,045 including tax at the verified retailer
• ISBN: 978-4-8322-9754-8
• Protagonist: Koyomi Yaguruma
• Japanese name: 矢車暦
• Major character: Ayumi
• Ayumi's relationship: Koyomi's younger sister
• Premise: Koyomi begins cycling after being invited by her sister
• Koyomi's starting point: an easygoing and messy solo lifestyle
• Main development: she gradually discovers that cycling can be fun
• Relationship element: considerable care and attention from her sister and friends
• Tone: relaxed and everyday-life focused
• Original guest run: 2024
• Initial guest chapters: three
• Guest period: Manga Time Kirara September–November 2024 issues
• Regular serialization: began February 7, 2025
• Launch magazine: Manga Time Kirara March 2025 issue
• Regular version: restarted from Chapter 1
• Serialization status: ongoing
• Volume 1 cover: dominated by vivid yellow
• Cover artwork: several characters with bicycles
• Store bonuses: available through multiple Japanese retailers
• Bonus-art status: all major announced bonuses use newly drawn artwork
• Melonbooks: 4-page leaflet
• Gamers: 4-page leaflet
• Comirano!: illustration card
• Mangaoh: illustration card
• COMIC ZIN: illustration card
• Digital edition: available
• Main promotional video: none used for this release announcement
• RYGAMES Short/Reels: omitted because the announcement is image-based

Volume 1 and Store Bonuses

From Staying Home to Getting on a Bicycle

Volume 1 begins with Koyomi Yaguruma, who is perfectly comfortable living alone and spending her days with very little motivation to change anything.

That routine is disrupted by her younger sister, Ayumi, who arrives determined to correct some of Koyomi's habits. One of her solutions is simply getting her older sister outside and onto a bicycle.

To Koyomi, riding without a clear goal initially seems like nothing more than unnecessary exhaustion. Once she learns how to ride more properly and starts traveling with the people around her, however, that attitude slowly changes.

The manga does not rely on a sudden personality transformation. Koyomi progresses in small steps: distances that once sounded exhausting become manageable challenges, and cycling changes from an obligation into something she chooses to enjoy.

Cycling Becomes a Reason to Go a Little Farther

The title 『ウチから何キロメートル？』 ties the story directly to the idea of measuring distance from home.

Cycling is not treated purely as competitive sport. Instead, the manga uses it as a simple way of expanding Koyomi's everyday world—visiting places, following friends, trying new routes or simply finding a reason to leave the house.

That makes the series particularly close to hobby-focused slice-of-life manga. Bicycles still receive meaningful attention as real objects and activities, but the technical side is folded into character comedy and ordinary relationships.

Manga Time Kirara itself promotes the series as a cycling 4-koma about a reclusive NEET putting in a little effort, which neatly reflects Koyomi's gradual development.

The Series Started as a 2024 Guest Before Becoming Regular

The manga did not immediately begin as a full serialization.

『ウチから何キロメートル？』first appeared as a three-chapter guest series in 2024, running across Manga Time Kirara's September through November issues.

Its positive reception then led to a regular serialization.

On February 7, 2025, the March 2025 issue of Manga Time Kirara launched the full series. Instead of directly continuing the guest material, the regular version restarted from Chapter 1, allowing readers to meet Koyomi and Ayumi from the beginning.

More than a year and a half later, the serialized material has now been collected into its first tankobon.

The Vivid Yellow Cover Defines the First Volume

Manga Time Kirara's official promotion specifically highlights the Volume 1 cover's vivid yellow color.

The illustration brings several characters together with different bicycles, immediately emphasizing the series' cycling identity. A small line reading “HOW MANY KILOMETERS FROM HOME?” appears near the top, while the Japanese title dominates the design in large black lettering.

The cover therefore communicates the hobby element immediately without pushing the characters into the background.

The official release post even encourages readers to consider cycling to a bookstore over the weekend, extending the series' central idea of measuring how far one can travel from home.

Every Featured Retail Bonus Uses New Artwork

Volume 1 also launches with a relatively broad set of retailer bonuses.

Manga Time Kirara's official lineup states that the featured bonus material uses newly drawn artwork by 蚕二号.

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Melonbooks and Gamers each offer a four-page leaflet, providing more space than a standard single illustration.

Comirano!, Mangaoh and COMIC ZIN each offer an illustration card featuring different character artwork.

The official visual also lists message papers for additional participating stores. Availability naturally depends on the retailer and remaining stock.

Print and Digital Editions Arrive Together

Volume 1 is available in both print and digital formats.

Houbunsha lists the physical edition at ¥1,100 including tax, with ISBN 978-4-8322-9754-8.

Digital retailers such as honto list the ebook as becoming available on the same date, September 26, 2026, at ¥1,045 including tax.

That gives Japanese readers the choice between a physical copy—with potential retailer bonuses—and a slightly less expensive digital edition.

Why This Matters

1) Koyomi's development comes through an ordinary hobby

The story does not need a major competition to show progress. Simply leaving home and gradually increasing the distance she can comfortably ride already represents meaningful change.

2) Cycling is part of the story rather than decoration

Riding technique, bicycle types, routes and distance all contribute to both its comedy and character relationships.

3) Its path from guest series to Volume 1 is easy to trace

Three guest chapters in 2024 became a full serialization in 2025, eventually leading to the first tankobon in September 2026.

4) Retail bonuses give the cast additional spotlight

Two four-page leaflets and several illustration cards provide extra newly drawn material beyond the main cover.

Manga Information

For now, the additional important information currently known includes:

• the Japanese title is 『ウチから何キロメートル？』
• the Latin wording printed on the cover is HOW MANY KILOMETERS FROM HOME?
• the manga is created by 蚕二号
• Houbunsha publishes the series
• serialization runs in Manga Time Kirara
• tankobon are released under Manga Time KR Comics
• the work uses a 4-koma format
• its core themes combine cycling, comedy and slice of life
• Koyomi Yaguruma is the protagonist
• her Japanese name is written 矢車暦
• Ayumi is Koyomi's younger sister
• Ayumi is the person who gets Koyomi started with cycling
• Koyomi initially lives a highly relaxed lifestyle at home
• she gradually begins enjoying cycling
• the manga also emphasizes her relationships with her sister and friends
• the original guest version appeared in 2024
• that guest run lasted three chapters
• full serialization began February 7, 2025
• the regular series launched in Manga Time Kirara's March 2025 issue
• regular serialization restarted the story from Chapter 1
• Volume 1 released September 26, 2026
• the physical price is ¥1,100 including tax
• the physical ISBN is 978-4-8322-9754-8
• the digital edition also launched September 26
• the verified ebook price is ¥1,045 including tax
• the cover prominently uses vivid yellow
• announced retailer bonuses use newly drawn artwork
• Melonbooks offers a four-page leaflet
• Gamers offers a four-page leaflet
• Comirano! offers an illustration card
• Mangaoh offers an illustration card
• COMIC ZIN offers an illustration card
• several additional stores receive message papers
• retailer bonuses remain subject to availability
• no trailer or PV serves as the main promotional material for Volume 1
• this article therefore does not use a video grid or Short block
• official series information is available through Manga Time Kirara Web
• publisher information is available through Houbunsha
• official updates are available through Manga Time Kirara Official X
• the Volume 1 launch announcement is available through the Official Volume 1 Release X Post
• early serialization information is available through Comic Natalie
• ISBN and digital-edition information is available through honto Volume 1

Closing

How Many Kilometers From Home? Volume 1 marks the first collected milestone for 蚕二号's cycling 4-koma after beginning as a guest feature in 2024 and expanding into a regular serialization in 2025. The story uses bicycles to show small but meaningful changes in Koyomi's life, taking her from someone content to remain at home toward someone increasingly willing to see what lies a little farther away.

The first volume has been available in print and digital form since September 26, 2026. The manga itself remains ongoing, while a second volume and its future collected-release schedule have not yet been announced.