A Student Club’s Guide to Murder Reveals Its Cover Ahead of October 28 Release

A Student Club’s Guide to Murder, the English wording printed on the cover of Haruka Nobukuni's Bukatsudo ni wa Mukanai Satsujin, has revealed its official cover ahead of its late-October launch. Shinchosha will publish the book through the Shincho Bunko nex label.

The cover places heroine Tsukihana Tsuji at the center, while the official premise takes readers to a school with an unusually severe problem: people keep dying around its student clubs. Tsukihana forms an investigative duo with her senior Kagenari, whom she calls “Kagepai.”

Quick Summary

• Japanese title: 部活動には向かない殺人
• English wording on cover: A Student Club’s Guide to Murder
• Romanization: Bukatsudo ni wa Mukanai Satsujin
• Author: Haruka Nobukuni / 信国遥
• Publisher: Shinchosha
• Label: Shincho Bunko nex
• Format: bunko
• Digital edition: available
• Physical release date: October 28, 2026
• Digital release date: October 28, 2026
• Physical price: 737 yen including tax
• Digital price: 737 yen
• Page count: 288
• ISBN: 978-4-10-180348-7
• ISBN-10: 410180348X
• C-CODE: 0193
• Publisher catalog number: の-22-1
• Digital series listing: Tsukihana Tsuji Series / 辻月花シリーズ
• Primary genre: school mystery
• Additional element: romance
• Structure: mystery centered on a heroine–senior duo
• Setting: Meisei Private High School / 私立名星高校
• Heroine: Tsukihana Tsuji / 辻月花
• Partner: Kagenari / 景成
• Kagenari's nickname: Kagepai
• Tsukihana: a junior who declares that she will become a detective
• Main relationship: junior heroine and senior
• School problem: deaths repeatedly occur around student clubs
• Case: a victim beaten to death in the kendo dojo
• Case: a severed head on the basketball court
• Case: a dying message during a competitive karuta tournament
• Story focus: solving a succession of difficult mysteries
• Character focus: Tsukihana and Kagenari's relationship
• Publisher tone: mystery and romance move together
• Cover: officially revealed
• Cover illustration: popman3580
• Cover design: Yasuhisa Kawatani
• Main cover image: Tsukihana seated in a red chair
• Dominant colors: white, dark red, and uniform green
• Current status: unreleased
• Preorders: available through Japanese retailers
• eBook: TTS-supported according to Shinchosha
• Release timing: later in October following the early-October cover reveal

Official A Student Club’s Guide to Murder Cover

A School Where Club Activities Keep Turning Deadly

The premise deliberately pushes its school setting to an extreme: multiple club activities at Meisei Private High School become scenes of death.

A murder occurs in the kendo dojo, a severed head appears on the basketball court, and a competitive karuta event introduces another dying message. Each case brings Tsukihana and Kagenari back together as an investigative pair.

Tsukihana and “Kagepai” Drive the Story

Tsukihana is presented as a confident junior willing to declare that she intends to become a detective. She even tells Kagenari not to take his eyes off her.

That junior–senior dynamic gives the book a second axis beyond its puzzles. Shinchosha explicitly positions their relationship alongside the mysteries, allowing romance and deduction to develop together.

The New Cover Puts the Heroine Front and Center

The newly revealed cover places Tsukihana alone in a large red chair. Her green school uniform, white background, and oversized black-and-red typography give the design a clean but immediately mystery-oriented identity.

The illustration is credited to popman3580, while Yasuhisa Kawatani is credited for the cover design. The English title A Student Club’s Guide to Murder is also printed directly on the artwork.

A New Tsukihana Tsuji Series From Haruka Nobukuni

Haruka Nobukuni previously wrote mysteries including Anata ni Kiite Moraitai Nanatsu no Satsujin and Mikansei no Satsujin.

Shinchosha's digital listing places the new book under the Tsukihana Tsuji Series, making the heroine a central identity for the series beginning with this release.

Why This Matters

1) Its school premise is intentionally dangerous

Rather than one isolated incident, several school clubs become the settings for separate mysteries.

2) The detective duo also carries a romance angle

Tsukihana and Kagenari's relationship is treated as part of the book's core appeal rather than a detached subplot.

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3) The cover establishes Tsukihana as the face of the series

Both the series listing and the visual composition position the heroine at the center of the title's identity.

A Student Club’s Guide to Murder Novel Information

For now, the additional important information currently known includes:

• the official Japanese title is 『部活動には向かない殺人』
• the English wording printed on the cover is A Student Club’s Guide to Murder
• Shinchosha lists the Japanese reading as ブカツドウニハムカナイサツジン
• the romanized form used for the slug is Bukatsudo ni wa Mukanai Satsujin
• the novel is written by Haruka Nobukuni
• the author's Japanese name is 信国遥
• Shinchosha publishes the book
• the imprint is Shincho Bunko nex
• the physical edition is a bunko
• the physical release is scheduled for October 28, 2026
• the eBook also releases October 28, 2026
• the physical edition costs 737 yen including tax
• the digital edition also costs 737 yen
• the book contains 288 pages
• the physical ISBN is 978-4-10-180348-7
• the ISBN-10 is 410180348X
• its C-CODE is 0193
• the publisher catalog number is の-22-1
• Shinchosha's digital page places it in the 辻月花シリーズ
• the official cover has now been revealed ahead of release
• cover illustration is credited to popman3580
• cover design is credited to Yasuhisa Kawatani
• the cover centers on a female student
• that character is Tsukihana Tsuji
• Tsukihana is the junior heroine
• Kagenari is the senior who becomes her investigative partner
• Tsukihana calls Kagenari “Kagepai”
• the primary setting is Meisei Private High School
• several deaths occur around its student clubs
• one case takes place in the kendo dojo
• that victim is found beaten to death
• another case involves a severed head on a basketball court
• competitive karuta also becomes a case setting
• one mystery involves a dying message
• the publisher markets the book as a school mystery
• the heroine–senior relationship also adds a romance element
• Shinchosha describes the mystery and romance as moving together
• the overall structure follows the central duo solving successive cases
• the eBook supports TTS
• Japanese retailers have opened reservations
• Shinchosha currently marks the book as coming soon
• no manga adaptation has been announced
• no anime adaptation has been announced
• no audio drama has been announced
• no voice cast has been announced
• no official trailer or PV has been identified for this book release
• no separate special edition has been announced through the main publisher page
• no retailer bonus is confirmed on the main publisher page
• Nobukuni previously published Anata ni Kiite Moraitai Nanatsu no Satsujin
• Nobukuni also has Mikansei no Satsujin in his bibliography
• book details are available through the Official Book Page
• the digital edition is available through the Official eBook Page
• the cover was announced through the Official Shincho Bunko nex X Post
• label updates are available through Shincho Bunko nex Official X
• author information is available through the Haruka Nobukuni Author Page

Closing

A Student Club’s Guide to Murder now has its final visual identity ahead of its October 28 release. The cover puts Tsukihana at the center while reinforcing the school-mystery tone behind Haruka Nobukuni's new story.

For now, promotion remains focused on the book and its newly revealed cover. No adaptation or video material has been announced, leaving further updates for the remaining weeks before launch.