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Kaiju No. 8: Relax, Vol. 3

By Naoya Matsumoto and Kizuku Watanabe
Series: Kaiju No. 8: Relax
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Brief Description
Sometimes even the greatest kaiju-fighting heroes need a day off. With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. But kaiju don’t attack every day! Sometimes, even the best and brightest kaiju-fighting heroes get a chance to relax.... Read More
Format: Paperback / softback
$1800
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Releases 13th October 2026 (Approx. Date) Pre-order  "Kaiju No. 8: Relax, Vol. 3" now to secure your copy from our first shipment

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Sometimes even the greatest kaiju-fighting heroes need a day off.

Book Hero Magic formatted this description to make it easier to read. While it's new and still learning, it may not be perfect - your feedback is welcome! Description

Sometimes even the greatest kaiju-fighting heroes need a day off.

With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. But kaiju don’t attack every day! Sometimes, even the best and brightest kaiju-fighting heroes get a chance to relax.

Things take a strange turn when Kafka bumps into Reno and the two somehow swap bodies, forcing them to find a way to switch back. Meanwhile, the Defense Force tackles a murder mystery, a dating sim sparks unexpected mayhem, and Kafka attempts pet ownership with predictably disastrous results. When the kaiju aren’t attacking, the real trouble begins!

Kaiju No. 8: Relax, Vol. 3 offers a humorous and unexpected side to the adventurous lives of these heroes, highlighting the chaos that ensues even in their downtime.

Series: Kaiju No. 8: Relax

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  • Kaiju No. 8: Relax, Vol. 1
    Kaiju No. 8: Relax, Vol. 1 by Kizuku Watanabe Sometimes even the greatest kaiju-fighting heroes need a day off. With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. But kaiju don’t attack every day! Sometimes, even the best and brightest kaiju-fighting heroes get a chance to relax. Join the top troops of...
    By Kizuku Watanabe
    Paperback
    $1800
    Elsewhere:
    $2099
    In Stock
    Ships tomorrow
  • Kaiju No. 8: Relax, Vol. 2
    Sometimes even the greatest kaiju-fighting heroes need a day off.With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. But kaiju don’t attack every day! Sometimes, even the best and brightest kaiju-fighting heroes get a chance to relax.The gag-filled spin-off of Kaiju No. 8 continues! Kafka Hibino heads out on a camping trip...
    By Kizuku Watanabe and Viz_Unknown
    Paperback
    $1800
    Elsewhere:
    $2099
    In Stock
    Ships tomorrow
  • Kaiju No. 8: Relax, Vol. 3
    Pre-order
    Kaiju No. 8: Relax, Vol. 3
    Sometimes even the greatest kaiju-fighting heroes need a day off. With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. But kaiju don’t attack every day! Sometimes, even the best and brightest kaiju-fighting heroes get a chance to relax. Things take a strange turn when Kafka bumps into Reno and the two somehow...
    By Naoya Matsumoto and Kizuku Watanabe
    Paperback
    $1800
    Elsewhere:
    $2099
    Pre-order
    Out 13 Oct 2026

Book Details

INFORMATION

ISBN: 9781974716753

Publisher: Viz Media, Subs. of Shogakukan Inc

Format: Paperback / softback

Date Published: 10 September 2026

Country: United States

Imprint: Viz Media, Subs. of Shogakukan Inc

Audience: General / adult

DIMENSIONS

Spine width: 13.0mm

Width: 127.0mm

Height: 191.0mm

Weight: 143g

Pages: 168

Collections

Fiction Graphic Novels Kizuku Watanabe Manga Naoya Matsumoto Pre-order Books Pre-order Graphic Novels Pre-orders Pre-orders by Release Date Series: Kaiju No. 8: Relax

About the Author

Kizuku Watanabe is a manga artist from Kumamoto Prefecture. He debuted in Weekly Shonen Jump in 2010 with the fairy-tale parody Marchen Prince Grimm. From 2015 to 2019, Watanabe planned and wrote Assassination Classroom: Koro Sensei Quest!, the official spin-off of the best-selling Assassination Classroom. In 2024, he returned with his latest manga, Kaiju No. 8: Relax.

Naoya Matsumoto published his first serialized series, Neko Wappa!, in Weekly Shonen Jump in 2009. His next series, Pochi Kuro, began serialization in Shonen Jump+ in 2014. Kaiju No. 8 is his follow-up series.

Also by Kizuku Watanabe

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  • Kaiju No. 8: Relax, Vol. 1
    Kaiju No. 8: Relax, Vol. 1 by Kizuku Watanabe Sometimes even the greatest kaiju-fighting heroes need a day off. With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. But kaiju don’t attack every day! Sometimes, even the best and brightest kaiju-fighting heroes get a chance to relax. Join the top troops of...
    By Kizuku Watanabe
    Paperback
    $1800
    Elsewhere:
    $2099
    In Stock
    Ships tomorrow
  • Kaiju No. 8: Relax, Vol. 2
    Sometimes even the greatest kaiju-fighting heroes need a day off.With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. But kaiju don’t attack every day! Sometimes, even the best and brightest kaiju-fighting heroes get a chance to relax.The gag-filled spin-off of Kaiju No. 8 continues! Kafka Hibino heads out on a camping trip...
    By Kizuku Watanabe and Viz_Unknown
    Paperback
    $1800
    Elsewhere:
    $2099
    In Stock
    Ships tomorrow

Also by Naoya Matsumoto

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  • Kaiju No. 8, Vol. 9
    Kaiju No. 8, Vol. 9 by Naoya Matsumoto Kafka wants to clean up kaiju, but not literally! Will a sudden metamorphosis stand in the way of his dream? With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. Enter the Japan Defense Force, a military organisation tasked with the neutralisation of kaiju. Kafka...
    By Naoya Matsumoto
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  • Kaiju No. 8, Vol. 10
    Kaiju No. 8, Vol. 10 by Naoya Matsumoto presents Kafka's dream of cleaning up kaiju—without becoming one himself! Will an unexpected metamorphosis derail his ambitions? With Japan experiencing the highest kaiju-emergence rates globally, the threat of deadly monsters is ever-present. The Japan Defence Force, a military entity tasked with the neutralisation of kaiju, stands ready to combat these threats. Kafka...
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  • Kaiju No. 8, Vol. 1
    Kaiju No. 8, Vol. 1 by Naoya Matsumoto delivers an exhilarating start to an epic tale that blends action, humour, and heart. Set in a world constantly under siege by monstrous kaiju, the story follows Kafka Hibino, a determined man who once dreamed of joining the Japan Defense Force—a military organisation dedicated to eliminating the kaiju threat. However, Kafka's path...
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  • Kaiju No. 8, Vol. 7
    Kaiju No. 8, Vol. 7 by Naoya Matsumoto Kafka wants to clean up kaiju, but not literally! Will a sudden metamorphosis stand in the way of his dream? With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. Enter the Japan Defense Force, a military organisation tasked with the neutralisation of kaiju. Kafka...
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  • Kaiju No. 8, Vol. 5
    Kaiju No. 8, Vol. 5 by Naoya Matsumoto Kafka wants to clean up kaiju, but not literally! Will a sudden metamorphosis stand in the way of his dream? With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. Enter the Japan Defense Force, a military organisation tasked with the neutralisation of kaiju. Kafka...
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  • Kaiju No. 8, Vol. 2
    Kaiju No. 8, Vol. 2 follows the story of Kafka, who wants to clean up kaiju, but not literally! Will a sudden metamorphosis stand in the way of his dream? With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. Enter the Japan Defense Force, a military organisation tasked with the neutralisation of...
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  • Kaiju No. 8, Vol. 8
    Kaiju No. 8, Vol. 8 by Naoya Matsumoto offers an exciting twist in the world of kaiju combat. Kafka Hibino dreams of cleansing Japan of its kaiju infestation, but not quite in the way fate has planned for him. When a sudden metamorphosis complicates his ambitions, Kafka must navigate the challenges of his new reality. Japan, plagued by the highest...
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  • Kaiju No. 8, Vol. 12
    Kafka wants to clean up kaiju, but not literally! Will a sudden metamorphosis stand in the way of his dream? With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. Enter the Japan Defense Force, a military organisation tasked with the neutralisation of kaiju. Kafka Hibino, a kaiju-corpse cleanup man, has always dreamed...
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  • Kaiju No. 8, Vol. 13
    Kafka wants to clean up kaiju, but not literally! Will a sudden metamorphosis stand in the way of his dream? With the highest kaiju-emergence rates in the world, Japan is no stranger to attacks by deadly monsters. Enter the Japan Defense Force, a military organisation tasked with the neutralisation of kaiju. Kafka Hibino, a kaiju-corpse cleanup man, has always dreamed...
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  • Kaiju No. 8, Vol. 14
    Kafka wants to clean up kaiju, but not literally! Will a sudden metamorphosis stand in the way of his dream? With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. Enter the Japan Defense Force, a military organisation tasked with the neutralisation of kaiju. Kafka Hibino, a kaiju-corpse cleanup man, has always dreamed...
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  • Kaiju No. 8, Vol. 4
    Kafka wants to clean up kaiju, but not literally! Will a sudden metamorphosis stand in the way of his dream? With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. Enter the Japan Defense Force, a military organisation tasked with the neutralisation of kaiju. Kafka Hibino, a kaiju-corpse cleanup man, has always dreamed...
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