Koko Jidai ni Goman Datta Joosama Volume 6 Reveals New Cover, Releases December 25, 2026

Koko Jidai ni Goman Datta Joosama to no Dosei Seikatsu wa Igaito Igokochi ga Warukunai Volume 6 is officially scheduled for release on December 25, 2026, under Shueisha's Dash X Bunko imprint. Its latest cover artwork was revealed on November 13, 2026, through the @da_tama2020 X account, operated by a Dash X Bunko editor. Written by Misoneta Dozaemon and illustrated by Yuga, the light novel has been listed for 990 yen including tax, with ISBN 9784086316781.

The sixth volume continues the relationship between Yamamoto and Hayashi, former schoolmates whose unexpected cohabitation began after Yamamoto helped Hayashi escape an abusive partner. Following the ski trip in the previous volume, Hayashi starts considering her future and decides to look for a job. However, her new chapter of life becomes increasingly complicated as Yamamoto's past relationship with Kasahara and the nearby presence of Matsuo affect the dynamics between the characters.

> Light spoiler notice: The following coverage discusses relationship developments from Volume 5 and the official Volume 6 synopsis.

Quick Summary

• Romanized title: Koko Jidai ni Goman Datta Joosama to no Dosei Seikatsu wa Igaito Igokochi ga Warukunai
• Japanese title: 高校時代に傲慢だった女王様との同棲生活は意外と居心地が悪くない
• Latin title status: romanization used by international book catalogs, not a confirmed official English title
• Format: light novel
• Categories: romance, romantic comedy, slice of life, drama
• Latest volume: Volume 6
• Author: Misoneta Dozaemon
• Illustrator: Yuga
• Publisher: Shueisha
• Imprint: Dash X Bunko
• Publication country: Japan
• Volume 6 release: December 25, 2026
• Cover reveal: November 13, 2026
• Listed price: 990 yen including tax
• Volume 6 ISBN: 9784086316781
• Print format: bunko paperback
• Main characters: Yamamoto and Megumi Hayashi
• Supporting characters: Kasahara and Matsuo
• Latest development: Hayashi begins searching for employment
• Relationship conflict: Yamamoto's history with Kasahara and Matsuo's proximity
• Previous light novel: Volume 5
• Light novel Volume 5 release: May 22, 2026
• Manga adaptation: available
• Manga Volume 5: scheduled for November 18, 2026
• Manga Volume 5 price: 792 yen including tax
• Volume 6 page count: not yet confirmed
• Volume 6 retailer bonuses: not yet officially detailed
• Anime adaptation: unannounced

Light Novel Volume 6 Cover Reveal

Light Novel Volume 6 Arrives December 25, 2026

On November 13, 2026, a Shueisha Dash X Bunko editor shared the Volume 6 cover design through X and confirmed that the book is scheduled for December 25, 2026. The announcement also encouraged readers to explore both the original light novel series and its separately published manga adaptation.

The new cover features a dark-haired female character with her hair tied back, wearing dark formal clothing over a white shirt. Illustrated by Yuga, the artwork uses a soft blue background and prominently displays the number 6 to identify the upcoming installment.

According to the Rakuten Books listing, the paperback will be published under Shueisha's Dash X Bunko imprint, with a listed price of 990 yen including tax and ISBN 9784086316781. Preorders are available, although the final page count, potential special editions, and retailer-exclusive purchase bonuses have not been reliably confirmed.

The sixth volume follows Volume 5, released on May 22, 2026. Both retain the same creative team, with Misoneta Dozaemon writing and Yuga providing illustrations, as the story continues exploring Yamamoto and Hayashi's evolving relationship.

Hayashi Looks for Work and Begins a New Chapter

The official Volume 6 synopsis confirms that Yamamoto and Hayashi are still living together following the previous installment's developments. Hayashi, formerly nicknamed the "Queen" because of her domineering personality in high school, has grown closer to Yamamoto after their ski trip.

That journey followed Hayashi's discovery that Yamamoto and Kasahara had dated during their high school years. Learning about their history left her with complicated feelings, but the trip helped strengthen her bond with Yamamoto and regain her emotional footing.

After the new year begins, Hayashi decides to search for employment. The decision represents an important step in her life after previously relying on Yamamoto's protection while leaving an abusive relationship. With his help, she eventually manages to secure a job.

Yet finding employment does not resolve every problem. The publisher's synopsis suggests that Hayashi's new everyday life will be far from trouble-free, particularly as the people around her continue to influence her circumstances. Volume 6 places employment and growing independence alongside the romantic developments central to the series.

Kasahara and Matsuo Complicate Yamamoto's Relationships

In addition to Hayashi's personal progress, Volume 6 returns attention to Kasahara and Matsuo, two characters whose relationships with Yamamoto have become increasingly important. Each contributes a different complication to the central pair's cohabitation.

According to the latest synopsis, Kasahara has become harsher toward Yamamoto since the ski trip. Her changed behavior follows the interpersonal developments of Volume 5, including the revelation that she and Yamamoto were previously in a romantic relationship.

Meanwhile, Matsuo has enrolled at the same university as Yamamoto and moved into an apartment nearby. Their physical proximity creates opportunities for more frequent encounters, although the publisher's synopsis does not fully disclose what happens next.

Their involvement means Yamamoto and Hayashi's challenges extend beyond simply adjusting to living under the same roof. Past relationships, friendships, and the characters' individual choices continue shaping Hayashi's new life as she works toward greater independence.

Original Light Novel Continues Alongside Its Manga Adaptation

Koko Jidai ni Goman Datta Joosama originally launched as a light novel through Shueisha Dash X Bunko on January 25, 2024. The story begins when Yamamoto, a university student working part-time at a convenience store, unexpectedly reunites with Hayashi, a former classmate known for her arrogant attitude.

Their reunion becomes the starting point of an unusual living arrangement after Yamamoto learns that Hayashi has experienced abuse from her boyfriend. He initially offers her temporary shelter, but the arrangement develops into a shared life that gradually reveals sides of both characters they never knew in school.

Shueisha also publishes a manga adaptation through its Young Jump Comics line. The comics have a separate production team, with Misoneta Dozaemon credited as the original creator and Yuga credited for the original character designs.

Manga Volume 5 is scheduled for November 18, 2026, priced at 792 yen including tax, with ISBN 9784088943664. Readers therefore have two related releases approaching: the manga's fifth volume in November and the original light novel's sixth volume in December. They are separate publications and should not be mistaken for matching volume numbers.

Why This Matters

1) Hayashi takes a step toward independence

Searching for employment marks a new stage for Hayashi after her earlier experience of an abusive relationship. Volume 6 moves beyond romance alone to explore the responsibilities of everyday life and rebuilding personal independence.

2) The character relationships continue growing more complicated

Kasahara has a romantic history with Yamamoto, while Matsuo now lives nearby. These circumstances expand the interpersonal challenges that Yamamoto and Hayashi must navigate while sharing their home.

3) The light novel and manga receive closely timed releases

Manga Volume 5 arrives in November, followed by light novel Volume 6 in December. The two publications provide different reading experiences through illustrated prose and manga storytelling.

Koko Jidai ni Goman Datta Joosama Volume 6 Information

For now, the additional important information currently known includes:

• the new cover was shared through Dash X Bunko editor @da_tama2020
• the announcement promotes both the original light novel and its manga adaptation
• Yuga continues as the light novel's illustrator
• early reservations are available through Rakuten Books
• the 990-yen amount is the listed Japanese retail price
• Volume 6 carries ISBN 9784086316781
• publishing records identify the book as part of the Dash X Bunko imprint
• the new synopsis continues the story after the ski trip in Volume 5
• finding employment becomes a new focus in Hayashi's life
• Yamamoto helps Hayashi secure a job
• Kasahara's past and Matsuo's new residence contribute to the conflict
• manga Volume 5 carries ISBN 9784088943664
• manga Volume 5 and light novel Volume 6 are separate editions
• the Volume 6 page count, retailer bonuses, and special editions remain undetailed
• no official anime adaptation or English translation release date has been announced

• the cover announcement is available through Official Dash X Bunko Editor X Announcement
• Volume 6 release details and synopsis are available through Volume 6 Rakuten Books Listing
• the previous novel is documented on Official Shueisha Dash X Bunko Volume 5 Page
• the manga release is documented on Official Shueisha Manga Volume 5 Page
• the original novel is documented on Official Shueisha Dash X Bunko Volume 1 Page

Closing

Koko Jidai ni Goman Datta Joosama Volume 6 is officially scheduled for December 25, 2026, with new cover artwork revealed through a Shueisha Dash X Bunko editor. The installment continues Yamamoto and Hayashi's relationship while introducing new developments as Hayashi begins working and faces changes in her daily life.

Written by Misoneta Dozaemon and illustrated by Yuga, the light novel will follow the manga adaptation's fifth volume in November. While its release date, listed price, ISBN, and synopsis are available, its page count, retailer-specific bonuses, and possible special editions remain subject to further publishing details.

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