The Ideal Sponger Life Books in Order

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The The Ideal Sponger Life series by Tsunehiko Watanabe includes 21 books published between 2019–2026.

✓ All 21 books verified against the publisher's official series list.

Publication order

In the order the books were originally released.

  1. Cover of The Ideal Sponger Life Vol. 1

    The Ideal Sponger Life Vol. 1

    2019 · Tsunehiko Watanabe

    Summoned to another world to bed a sexy queen?! Zenjiro has lived his life as a run-of-the-mill office drone, but an unexpected flash of magic brings…

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  2. Cover of The Ideal Sponger Life Vol. 2

    The Ideal Sponger Life Vol. 2

    2019 · Tsunehiko Watanabe

    THE CONSPIRACIES OF COURT Zenjiro left his life on Earth behind to become the husband of a beautiful queen, but as it turns out, not everything is…

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  3. Cover of The Ideal Sponger Life Vol. 3

    The Ideal Sponger Life Vol. 3

    2019 · Tsunehiko Watanabe

    SECRETS OLD AND NEW When he chose to leave Earth and marry Queen Aura, Zenjiro learned that his blood carried an otherworldly ancestry...but it turns…

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  4. Cover of The Ideal Sponger Life Vol. 4

    The Ideal Sponger Life Vol. 4

    2019 · Tsunehiko Watanabe

    THE BATTLE FOR THE GREAT SALT ROAD Two years have passed since Zenjiro was summoned to a kigdom in another world and married its beautiful queen.…

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  5. Cover of The Ideal Sponger Life Vol. 5

    The Ideal Sponger Life Vol. 5

    2020 · Tsunehiko Watanabe

    THE ENCHANTERS OF SHAROU Not once in hundreds of years has the royal family of Sharou left the Twin Kingdoms, but suddenly, a delegation of their…

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  6. Cover of The Ideal Sponger Life Vol. 6

    The Ideal Sponger Life Vol. 6

    2020 · Tsunehiko Watanabe

    PLENTY OF FISH IN THE SEA A young girl calling herself Princess Freya arrives in the Kingdom of Capua, claiming to have sailed from across the…

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  7. Cover of The Ideal Sponger Life Vol. 7

    The Ideal Sponger Life Vol. 7

    2020 · Tsunehiko Watanabe

    AGGRESSIVE NEGOTIATIONS Zenjiro finds himself alone in the city of Valentia, serving both as representative of the queen and special envoy to the…

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  8. Cover of The Ideal Sponger Life Vol. 8

    The Ideal Sponger Life Vol. 8

    2021 · Tsunehiko Watanabe

    A NORTHERN AFFAIR The time has come for the towering, fearsome General Pujol to tie the knot. The wedding ceremony is set to take place far from the…

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  9. Cover of The Ideal Sponger Life Vol. 9

    The Ideal Sponger Life Vol. 9

    2021 · Tsunehiko Watanabe

    RIVALS REUNITED Zenjiro and Princess Freya travel across the kingdom to a very important wedding. With General Pujol set to marry the daughter of an…

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  10. Cover of The Ideal Sponger Life Vol. 10

    The Ideal Sponger Life Vol. 10

    2022 · Tsunehiko Watanabe

    THIS WEDDING IS A BATTLEFIELD Not all is well at the Kingdom of Capua’s most important wedding. In the dead of night, a soldier from the foreign…

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  11. Cover of The Ideal Sponger Life Vol. 11

    The Ideal Sponger Life Vol. 11

    2022 · Tsunehiko Watanabe

    POWER OVER SPACE AND TIME Queen Aura’s second child is coming, and with it comes all the perils of politics and pregnancy. Having a baby in a world…

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  12. Cover of The Ideal Sponger Life Vol. 12

    The Ideal Sponger Life Vol. 12

    2022 · Tsunehiko Watanabe

    A ROYAL INHERITANCE With his wife Queen Aura now expecting another child, Zenjiro is dead-set on obtaining a magical healer to help her with the…

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  13. Cover of The Ideal Sponger Life Vol. 13

    The Ideal Sponger Life Vol. 13

    2023 · Tsunehiko Watanabe

    INTRIGUE IN THE TWIN KINGDOMS When Zenjiro came to the Kingdom of Capua, he hoped for a laid-back sponger's lifestyle, but now he'll do anything to…

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  14. Cover of The Ideal Sponger Life Vol. 14

    The Ideal Sponger Life Vol. 14

    2023 · Tsunehiko Watanabe

    A SALES PITCH FIT FOR ROYALTY As a visitor to the royal court of the Twin Kingdoms, Zenjiro swiftly got caught up in the intrigue of a royal…

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  15. Cover of The Ideal Sponger Life Vol. 15

    The Ideal Sponger Life Vol. 15

    2024 · Tsunehiko Watanabe

    A PRAGMATIC PRINCESS IN THE LAND OF ENCHANTMENT After navigating the succession dispute within the Twin Kingdoms, Zenjiro's visit home is…

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  16. Cover of The Ideal Sponger Life Vol. 16

    The Ideal Sponger Life Vol. 16

    2024 · Tsunehiko Watanabe

    A DEAL TOO GOOD TO BE TRUE Princess Freya has arrived in the Twin Kingdoms, aiming to purchase enchanted items for her journey home. Lucrezia smells…

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  17. Cover of The Ideal Sponger Life Vol. 17

    The Ideal Sponger Life Vol. 17

    2024 · Tsunehiko Watanabe

    TO SAIL THE COLD AND NORTHERN SEA A new era has come for the Kingdom of Capua, as Queen Aura delegates great powers to her new Prime Minister and…

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  18. Cover of The Ideal Sponger Life Vol. 18

    The Ideal Sponger Life Vol. 18

    2025 · Tsunehiko Watanabe

    SETTING SAIL FOR A NEW AGE OF ENCHANTMENT The royal family of Capua has at long last perfected their secret method for producing crystal…

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  19. Cover of The Ideal Sponger Life Vol. 19

    The Ideal Sponger Life Vol. 19

    2025 · Tsunehiko Watanabe

    INTRIGUE IN THE MYSTERIOUS NORTH! After a long voyage across unfamiliar seas, Zenjiro and the crew of the Glasir's Leaf arrive in the port town of…

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  20. Cover of The Ideal Sponger Life Vol. 20

    The Ideal Sponger Life Vol. 20

    2025 · Tsunehiko Watanabe

    THE STORMCLOUDS OF WAR LOOM OVER THE NORTHERN LANDS After a daring transoceanic voyage, Zenjiro and the gang have arrived in Pomorskie, a port city…

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  21. Cover of The Ideal Sponger Life Vol. 21

    The Ideal Sponger Life Vol. 21

    2026 · Tsunehiko Watanabe

    HOLY KNIGHTS AND TENACIOUS MERCENARIES CLASH ON THE NORTHERN BATTLEFIELD The ragtag force led by mercenary captain Jan finally comes into contact…

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✓ = numbering verified against the publisher's official series list.

📅 = publisher-announced release dates; subject to change. All upcoming releases →

Frequently asked questions

What order should I read the The Ideal Sponger Life books in?

Read them in publication order, starting with “The Ideal Sponger Life Vol. 1”. Start with “The Ideal Sponger Life Vol. 1.”

How many books are in the The Ideal Sponger Life series?

We list 21 books by Tsunehiko Watanabe , published between 2019–2026.

When is the next The Ideal Sponger Life book released?

The next book is “The Ideal Sponger Life Vol. 22”, book 22 in the series, expected Sep 1, 2026. That is the publisher's announced date and can change; this page updates when it does.

Where can I buy the The Ideal Sponger Life books?

Each title above links to Amazon. See our affiliate disclosure.

Reading order compiled from author/publisher guidance and verified bibliographic data. Spotted a wrong order, a missing book, or any other mistake? and we'll correct it.