Seitokaichou wa Kanojo janai no ni Releases October 1 with the Student Council President Leading Volume 3

Seitokaichou wa Kanojo janai no ni, written by Miura Miu, will be released in Japan on October 1, 2026. KADOKAWA is publishing the book under its Kadokawa Sneaker Bunko imprint, with Oryou returning as the illustrator.

The novel is the third entry in the Kanojo janai no ni series. After the previous books centered on Riria and Hinayo, student council president 十和田詩弦 becomes involved in the complicated relationships surrounding Asahi.

Quick Summary

• Japanese title: 生徒会長はカノジョじゃないのに
• Romanized title: Seitokaichou wa Kanojo janai no ni
• Official English/global title: not yet announced
• Format: light novel
• Series position: third Kanojo janai no ni book
• Japanese release date: October 1, 2026
• Author: Miura Miu
• Japanese author name: 水卜みう
• Illustrator: Oryou
• Japanese illustrator name: おりょう
• Publisher: KADOKAWA
• Imprint: Kadokawa Sneaker Bunko
• Book format: bunko paperback
• Page count: 260 pages
• Japanese price: 880 yen including tax
• ISBN: 978-4-04-117866-9
• Preorders: now open
• Protagonist: 平川朝陽
• Volume 3 heroine: 十和田詩弦
• Returning heroines: 外ヶ浜凛々亜 and 西目屋雛世
• Story focus: the student council president discovers Asahi and Riria's secret
• New material: Volume 3 cover
• First book: Junjou Gal wa Kanojo janai no ni
• First-book release date: October 31, 2025
• Second book: Bungaku Otome wa Kanojo janai no ni
• Second-book release date: May 1, 2026
• Volume 3 digital edition: not currently listed
• Official English edition: not yet announced
• Official Indonesian edition: not yet announced
• Anime adaptation: not yet announced

Announcement and Volume 3 Cover

Third Book Scheduled for October 1

KADOKAWA will release Seitokaichou wa Kanojo janai no ni on October 1, 2026. The bunko edition contains 260 pages and is priced at 880 yen including tax.

Preorders for the print edition are available through KADOKAWA's official store and participating Japanese retailers. Its ISBN is 978-4-04-117866-9, while a digital edition was not listed when the announcement was published.

Miura Miu remains the author, and Oryou continues to handle the illustrations, maintaining the same creative team as the first two books.

The Student Council President Learns Asahi's Secret

The official synopsis continues the story of 平川朝陽, whose close relationships with Riria and Hinayo have developed across the previous books. The new conflict begins when student council president 十和田詩弦 sees Asahi and Riria leaving a hotel.

The encounter puts Asahi in a difficult position because Towada is known as a serious and strict student leader. Miura Miu's announcement also suggests that the pressure she keeps hidden may reveal a different side of her character.

Her exact response has not been fully explained. The available synopsis only establishes the discovery as the event that draws the student council president into Asahi's existing relationships.

Each Book Centers on a Different Heroine

The series changes its title to match the main heroine of each installment. The first book, Junjou Gal wa Kanojo janai no ni, introduced Riria as one of the most socially prominent girls in Asahi's class.

The second book, Bungaku Otome wa Kanojo janai no ni, shifted its focus to Hinayo, an academically gifted student with a strong interest in literature. The relationship established with Riria continued while another heroine received the central role.

Seitokaichou wa Kanojo janai no ni follows that structure by moving the student council president into the foreground. Despite the different book titles, all three entries form one continuous story around Asahi and the girls at his school.

Cover Reveals the President's Private Side

The Volume 3 cover presents the student council president alone inside a school room. She remains dressed in her uniform with its red ribbon, but her embarrassed expression contrasts with the discipline associated with her public role.

Books and an item marked for the student council reinforce the setting. The illustration places her responsibilities as a student leader beside the more personal side explored in the new story.

The specific scene represented by the cover has not been explained, so the artwork alone does not confirm an exact event from the volume.

Why This Matters

1) The ongoing story continues through rotating heroines

Each novel moves a different character into the central role without removing the relationships and conflicts established in earlier books.

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2) The student council president holds authority at school

Unlike Riria and Hinayo, Towada has an official position that may affect Asahi's school life after discovering his secret.

3) Her strict image is contrasted with hidden pressure

The author's announcement and cover illustration indicate that the disciplined president has vulnerabilities she does not normally show to other students.

4) The series reached its third book in under a year

The first book arrived in October 2025, followed by the second in May 2026 and the third in October 2026.

Light Novel Information

The important details currently known are:

• Seitokaichou wa Kanojo janai no ni is the third book in the Kanojo janai no ni series
• its official Japanese title is 生徒会長はカノジョじゃないのに
• the novel is written by Miura Miu and illustrated by Oryou
• KADOKAWA publishes it through the Kadokawa Sneaker Bunko imprint
• the book will be released on October 1, 2026
• the bunko edition contains 260 pages
• its Japanese price is 880 yen including tax
• the ISBN is 978-4-04-117866-9
• the story follows Asahi after the student council president sees him leaving a hotel with Riria
• 十和田詩弦 serves as the primary heroine of the third book
• Riria and Hinayo remain involved in the continuing story
• the first book is titled Junjou Gal wa Kanojo janai no ni
• the second book is titled Bungaku Otome wa Kanojo janai no ni
• the Volume 3 cover was revealed through the author's official account
• Japanese print preorders are now open
• a Volume 3 digital edition is not currently listed
• official English and Indonesian editions have not been announced
• an anime adaptation has not been announced
• publication details are available through the official KADOKAWA page for Seitokaichou wa Kanojo janai no ni
• the previous books are listed through the official Kanojo janai no ni series page

Closing

Seitokaichou wa Kanojo janai no ni continues the series by bringing the student council president into the center of the story without abandoning Asahi's relationships with Riria and Hinayo. Towada's discovery creates a new conflict involving school authority and the personal strain hidden behind her disciplined image.

The third book will be released in Japan on October 1, 2026. A digital edition, retailer bonuses, international publication, and further story details remain unannounced.