Kudan no Ken ni Tsuite Volume 1 Releases September 1 with a Romance Whose Future Is Already Written

Kudan no Ken ni Tsuite (件の件について) will release its first collected volume in Japan on September 1, 2026.

Written by 端 and illustrated by イズタニC, the supernatural romantic comedy follows rookie novel editor Yuu Hazama and Madarako, a Kudan girl whose ability to foresee the future allows her to write a novel based on what will happen between them.

Quick Summary

• Japanese title: 件の件について
• Reading: くだんのけんについて
• Romanized title: Kudan no Ken ni Tsuite
• Official English/global title: not announced
• Format: manga
• Genres: romantic comedy, supernatural, and yokai
• Latest volume: Volume 1
• Release date: September 1, 2026
• Story: 端
• Artwork: イズタニC
• Publisher: Houbunsha
• Imprint: Houbunsha Comics / FUZ Comics
• Serialization: COMIC FUZ
• Price: 858 yen including tax
• Page count: 192
• ISBN: 978-4-8322-0652-6
• Female lead: Madarako / 斑子
• Male lead: Yuu Hazama / 狭間ユウ
• Yuu’s occupation: rookie novel editor
• Madarako’s identity: Kudan girl
• Ability: foresight and prophecy
• Central premise: Madarako writes a novel based on her future with Yuu
• Official description: a predetermined-harmony romantic comedy
• Manga status: ongoing
• Official English edition: not announced
• Official Indonesian edition: not announced
• Anime adaptation: not announced

Announcement and Volume 1 Cover

A Novel Describes the Future of Its Author and Editor

The story begins when rookie novel editor Yuu Hazama discovers a manuscript that catches his attention.

Its author is Madarako, a girl connected to the Kudan, a half-human, half-bovine supernatural being capable of prophecy.

The manuscript is not simply a fictional story created from imagination.

Madarako has used her foresight to write about the future she will share with Yuu, turning events that have not yet happened into the source material for her novel.

Yuu is therefore placed in the unusual position of editing a story that may tell him what will happen between himself and its author.

That idea drives both the comedy and romance: how naturally can a relationship develop when one person already knows where it is supposedly going?

Madarako Has Already Chosen Yuu

COMIC FUZ’s early promotion presents Madarako as a Kudan girl who has taken an interest in Yuu.

Her knowledge of the future changes the usual romantic-comedy dynamic. She can act with confidence about events that Yuu has not experienced, while he has to process information about his own life before it happens.

COMIC FUZ describes the series as a 予定調和ラブコメ, effectively a romantic comedy whose outcome appears to have been arranged in advance.

Knowing the future, however, does not make the journey toward it straightforward.

Yuu’s reactions, Madarako’s use of prophecy, and their everyday interactions still create awkward situations and opportunities for comedy.

The publishing-industry setting also gives the relationship an unusual starting point: their connection begins through a manuscript Yuu is professionally expected to evaluate.

The Title Is a Japanese Wordplay

The title 件の件について is read Kudan no Ken ni Tsuite.

Its first 件 refers to the supernatural Kudan, while the second can be read ken, meaning a matter or subject.

That creates wordplay that does not translate neatly into English without losing the double meaning.

The manga applies the same idea to its premise. Instead of using prophecy primarily for disaster or horror, the Kudan’s foresight becomes the mechanism driving a romantic comedy.

The supernatural concept is therefore inseparable from the relationship itself rather than simply functioning as background lore.

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Volume 1 Contains 192 Pages

Houbunsha will publish the first collected volume through FUZ Comics on September 1.

The physical edition is priced at 858 yen including tax, contains 192 pages, and carries ISBN 978-4-8322-0652-6.

COMIC FUZ has revealed both the cover artwork and an obi-equipped promotional version ahead of release.

The ongoing chapters remain available digitally through COMIC FUZ.

Why This Matters

1) One side of the romance already knows the spoilers

Madarako’s foresight creates a relationship fundamentally different from a romantic comedy built entirely around uncertainty.

2) A manuscript triggers the relationship

Yuu discovers his possible future not through a conventional prophecy but through a novel he is supposed to evaluate professionally.

3) Kudan folklore becomes romantic comedy

A supernatural ability normally associated with ominous predictions is redirected toward everyday romance and publishing-industry comedy.

4) Even the title supports the premise

The double use of 件 connects the Kudan herself with the “matter” concerning the two characters.

Manga Information

The important details currently known are:

• Kudan no Ken ni Tsuite is serialized through COMIC FUZ
• 端 writes the story
• イズタニC provides the artwork
• Volume 1 releases on September 1, 2026
• Houbunsha publishes the collected edition
• it belongs to the FUZ Comics imprint
• Volume 1 costs 858 yen including tax
• the book contains 192 pages
• its ISBN is 978-4-8322-0652-6
• the story follows rookie novel editor Yuu Hazama
• Madarako is a Kudan girl capable of seeing the future
• she writes a novel based on her future with Yuu
• COMIC FUZ promotes the series as a predetermined-harmony romantic comedy
• official English and Indonesian editions have not been announced
• no anime adaptation has been announced
• the manga is available through the official COMIC FUZ page
• Volume 1 information is listed by Houbunsha

Closing

Kudan no Ken ni Tsuite turns prophecy into a romantic-comedy device about a woman who already knows her future with the man she likes.

Volume 1 arrives on September 1, 2026. With Madarako’s prophetic novel connecting her to Yuu, the central question is not simply whether the two will end up together, but how they reach a future that has already been written.