Author Information
Okayado's Latest Book

Newest Release

  • Bibliography:
    33 Books
  • First Book:
    November 2013
  • Latest Book:
    December 2024
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Book List in Order: 33 titles



  • Monsters - they're real, and they want to date us! Three years ago, the world learned that harpies, centaurs, catgirls, and all manners of fabulous creatures are not merely fiction; they are flesh and blood - not to mention scale, feather, horn, and ...



  • A Monster Hit: #1 on the New York Times' Manga Best Sellers list!

    It's bad enough that Kimhito is stuck hosting not one, not two, but three sexy Monster Girls--and is forbidden by law to touch any of them, no matter how much they come on to...



  • Orcs, Werewolves, and Mermaids, Oh My!
    So far, Kimihito's been lucky. The monster girls living with him have been cute, curvaceous, and have never tried to kill him on purpose. But now, the dark side of liminals rises to the surface. Piggish o...



  • Monster Musume is an ongoing manga series that presents the classic harem comedy with a fantastical twist: the female cast of characters that tempts our male hero is comprised of exotic and enticing supernatural creatures like lamias, centaurs and...



  • Udder Madness!

    "Get married and I kill you." This was the letter sent to Kimihito, an ordinary guy living with a houseful of extraordinary beauties, by a mysterious writer known only as "D." Now it's up to Interspecies Coordinator Smith, Kim...



  • HARPY GIRLS JUST WANNA HAVE FUN!

    Three things you should know about Touga Eita, second-year high school student and heir to the Touga-style ninjutsu dojo: First, he really, really loves video games. Second, when given a choice between heroic...



  • A New York Times manga bestseller
    Just when Kimihito thought his supernatural harem couldn't get any bigger-along comes the strangest monster girl yet! She wears a long black coat, sports a scythe, and has no head! Is she the Grim Reaper, or so...



  • GET YOUR DUNGEON CRAWL ON!

    High school game addict and reluctant ninja Touga Eita has broken his magical gauntlet while driving the Gigas away from the harpy settlement. To fix it, Eita, Aero, and Jawea must seek out the mysterious smith of ...



  • Monster MILFs

    Kimihito's eyes are about to pop. The mothers of not one, not two, but three of the monster girls who live with him are coming for a visit. It doesn't help that this trio of mothers is every bit of sexy as their daughters―and...






  • Incorporating Okayado's signature, sexy spin on mythological creatures, 12 Beast is an upbeat, hilarious fantasy about a high school student transported to another world.

    BOSS BATTLE BY THE SEA!

    Sun, sand, and girls in bikinis playing ...



  • Monster Musume is an ongoing manga series that presents the classic harem comedy with a fantastical twist: the female cast of characters that tempts our male hero is comprised of exotic and enticing supernatural creatures like lamias, centaurs, an...



  • A hilarious companion series to Monster Musume that includes three bonus monster girl postcards!

    Monster Musume: I Heart Monster Girls is a brand new, two-volume manga series starring everyone’s favorite monster girls from the New York Tim...



  • A hilarious companion series to Monster Musume that includes three bonus monster girl postcards!

    Monster Musume: I Heart Monster Girls is a brand new, two-volume manga series starring everyone’s favorite monster girls from the New York Tim...



  • A New York Times monster bestseller! In a shocking twist (okay, maybe not so shocking...), Kimihito learns that he's been playing host to a princess! Mero the mermaid is actually the daughter of the king and queen of the sea, and now her royal mothe...



  • Incorporating Okayado's signature, sexy spin on mythological creatures, 12 Beast is an upbeat, hilarious fantasy manga about a high school student transported to another world.

    Eita Touga, heir apparent to a distinguished line of ninja. Trai...



  • Monster Musume is a classic harem comedy manga with a sexy fantastical twist: the female cast of characters that tempts our male hero is comprised of exotic and enticing supernatural creatures like lamias, centaurs, and harpies!

    What do worl...



  • A hilarious companion series to Monster Musume that includes three bonus monster girl post cards!

    Monster Musume: I Heart Monster Girls is an ongoing manga series starring everyone’s favorite monster girls from the New York Times bestselle...



  • A hilarious companion series to Monster Musume that includes three bonus monster girl post cards!

    Monster Musume: I Heart Monster Girls is an ongoing manga series starring everyone’s favorite monster girls from the New York Times bestselle...







  • A New York Times monster bestseller! Monster Musume is an ongoing manga series that presents the classic harem comedy with a fantastical twist: the female cast of characters that tempts our male hero is comprised of exotic and enticing supernatu...



  • The newest monster girl series from the New York Times best selling author!

    There are three things you should know about Touga Eita, second-year high school student and heir to the Touga-style ninjutsu dojo. First, he really, really loves v...



  • When he goes undercover to find the third roge liminal, Kimihito finds himself at the mercy of a horde of blood-sucking monster girls, and Miia, Papi, and the rest of Kimihito's menagerie must find him before it's too late....




  • The debut work of OKAYADO―the creator of Monster Musume!

    Mako-chan is striving to become a professional witch, but before she can graduate from school, she must travel to the human world to complete her studies. It’s there she meets a le...



  • Slime Time!

    Suu's been kidnapped! Kimihito and his houseful of monster girls set out to find her, but what starts as a simple search and rescue mission turns dangerous when Suu is forced to face off against a giant slime. A plus-sized water ...



  • A WHOLE NEW GAME

    Eita and Freki have merged to form the Fang gauntlet! Now, they must figure out how to use its unique abilities to defeat Hunter and his powerful gigas and protect the werewolvesâ€"all without killing each other in the proce...



  • GOT MILK?

    Kimihito’s been sent to work on a farm! He gets up at dawn, dresses in overalls, and works with his hands. But just what kind of work are those hands doing? After all, this is no ordinary farm―all the other farm workers are sex...



  • DIPLOMACY, LAMIA-STYLE

    Miia is suddenly called back to the Lamia homeland when a disagreement amongst the various Serpentine folk (the Lamia, Echidna, Melusine, and Medusae tribes) threatens the Interspecies Cultural Exchange, which would m...



  • RE-VERSAL OF FORTUNE

    Unable to escape Gamer’s assault, Eita has been captured! He seizes the chance to free himself, but finds his path blocked by the Out-person serving at Gamer’s side. Why would an Out-person work with their sworn enem...






  • A New York Times bestselling series that kicked off the monster girl phenomena in North America!

    What do world governments do when they learn that fantastical beings are not merely fiction, but flesh and blood--not to mention feather, hoof,...



  • An upbeat, hilarious fantasy manga about a high school student transported to another world.

    Three things you should know about Touga Eita, second-year high school student and heir to the Touga-style ninjutsu dojo: First, he really, really l...



  • The New York Times bestselling series that kicked off the monster girl phenomena in North America!What do world governments do when they learn that fantastical beings are not merely fiction, but flesh and blood—not to mention feather, hoof, and ...



  • The New York Times bestselling series that kicked off the monster girl phenomena in North America!What do world governments do when they learn that fantastical beings are not merely fiction, but flesh and blood—not to mention feather, hoof, and ...


Frequently Asked Questions (FAQ)

Okayado has published 33 books.

The next book by Okayado, Monster Musume Vol. 18, will be published in December 2024.

The first book by Okayado, Monster Musume Vol. 1, was published in November 2013.

No. Okayado does not write books in series.