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AidaIro's Latest Book

Newest Release

  • Bibliography:
    44 Books
  • First Book:
    August 2017
  • Latest Book:
    September 2024
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Book List in Order: 44 titles



  • "Hanako-san, Hanako-san...are you there?" At Kamome Academy, rumors abound about the school's Seven Mysteries, one of which is Hanako-san. Said to occupy the third stall of the third floor girls' bathroom in the old school building, Hanako-san grants...



  • Nene Yashiro has made a pact with “Hanako-san of the Toilet,” aka Hanako-kun, to hold off the curse that has been placed on her. In exchange, she has to help him resolve the problems caused by the school’s supernaturals -- starting with rescuin...



  • Nene and Kou want to learn more about their mysterious friend, Hanako-kun--and what better way to do that than school mystery number five, The 4pm Bookstacks! The rumors say that a secret door in the library leads the way to a supernaturally special ...



  • Nene steps into the spotlight! The mermaid kingdom hasn't forgotten her, and they're back to claim what's theirs! Can Hanako protect her from becoming permanently fishy? Meanwhile, Kou makes friends with an odd ghost haunting the entrance to the midd...



  • Nene Yashiro serves as the assistant to the School Mystery Hanako-kun. When she is invited by enigmatic playboy Natsuhiko to a mysterious tea party, she meets Hanako-kun's "girlfriend" and his "little brother"...!? On top of that, she learns that one...



  • Through the workings of the School Mystery Clock Keepers, Kamome Academy's entire student body is covered in wrinkles!? To restore peace to the school, Hanako-kun teams up with a certain someone. Just when they thought the case was headed to its conc...



  • Hanako-kun's assistant Nene has suddenly been dragged inside a mirror. Through the looking glass, she meets the spirit of a young boy calling himself Mitsuba. They try to escape the mirrors together, but the threat of No. 3 of the Seven Mysteries, th...



  • It's been three days since they returned from the School Mystery Three, the Hell of Mirrors. To cheer up the depressed Kou, Nene heads to the Boundaries' Tanabata festival. She was supposed to be enjoying the festival with Hanako-kun and Kou, but sud...



  • That day, Nene went to school as usual, but found Hanako-kun acting like one of her normal classmates...!? She seems to be the only one who notices anything amiss, seeing as Hanako-kun was supposed to be a ghost...! Hunting for the truth, she heads t...






  • If Nene and Kou want to return to their own world, they have to kill “Amane Yugi” and “Sousuke Mitsuba”- or rather, the versions of them living within the canvas of No. 4’s boundary. Faced with that cruel choice, Nene instead proposes a way...



  • At long last, Hanako-kun reveals his plan to save Nene from her inevitable, swiftly approaching death. But even knowing his intentions, Nene is determined to return to reality-and to do that, she’ll need the help of School Mystery No. 4, Mei Shijim...



  • Shijima-san is willing to help Nene and her friends escape from the painting, but they don't have much time to reach the distant exit. And to make matters worse, Hanako-kun is pulling out all the stops to keep them from leaving......



  • Nene and Akane are rescued from the clutches of a horde of supernaturals by School Mystery No. 6... who then immediately kidnaps Aoi?! With so many School Mystery seats unfilled and the long, dark night of Urabon here at last, this ancient supernatur...



  • EXPOSÉ! FIND OUT WHAT THE SCHOOL MYSTERIES DO AFTER SCHOOL!​The ghostly Hanako-kun and his mortal assistant, Nene Yashiro, usually have their hands full resolving various supernatural incidents in Kamome Academy, but how do they spend their time w...



  • After going to rescue Aoi, Hanako-kun and Nene are thrown from No. 6’s boundary and suddenly find themselves in a strange village, where they meet a girl named Sumire who seems to have a history with No. 6. Witnessing Sumire’s “wedding day” u...



  • Nene’s best friend Aoi has been trapped on the Far Shore -- but to Hanako-kun, who has been worrying for ages over how to save Nene from her rapidly approaching death, this turn of events is exactly what he needs. Nene and Akane have no intention ...



  • Tsukasa disappears, leaving behind Nene, Mitsuba, and a cryptic message concerning the clock. Meanwhile, as the festival preparations continue, Sakura and Natsuhiko make their move… Read the next chapter of Toilet-bound Hanako-kun th...



  • It’s alluring, it’s adorable, it’s in all the colors of the rainbow—it’s AidaIro Illustrations, the Toilet-bound Hanako-kun artbook! It features over 170 illustrations, including all the color pages published in Monthly ...



  • In exchange for a life, the link between this world and the next has been severed. Even so, Nene and Kou continue looking for a way to reach the boundaries, a search that leads them to the cursed "Red House." Inside, they find a boy who looks just li...






  • The origin of AidaIro’s masterpiece! Toilet-bound Hanako-kun was originally published as a self-contained short series, and you can read those three chapters here along with AidaIro’s debut work, “My Dear Living Dead.” If you want to see Nene...




  • Confronted with the equally thorny problems of getting out of exorcising Mitsuba and escaping the aquarium, Kou decides to kill two birds with one stone... Read the next chapter of Toilet-bound Hanako-kun the same day as Japan!...



  • Thanks to the manipulations of the Broadcast Club, Nene and Sumire find themselves trapped once more in No. 6’s boundary—and while Hanako-kun isn’t there to help them escape this time, they aren’t alone......



  • With Sumire and No. 6 finally reunited after so many years, they have a lot to catch up on -- and perhaps a chance to change how they left things......



  • No. 6 comes to terms with his feelings at long last, and expresses them in the only way he knows how......



  • With the boundary falling apart around them, Nene has little time to ask Sakura questions, and even less reason to believe she’s telling the truth -- but the answers she provides are earth-shaking......



  • With everyone safely returned to the mortal realm, it’s time to celebrate with the fireworks party Nene’s been waiting for!...



  • Thanks to Teru brooding in his room ever since he got back from the Boundary, the Minamoto brothers haven’t had a chance to talk since their big fight—and if they’re going to settle things before dinner, Teru will have to face his p...



  • Right when Nene and co. need information from someone close to Tsukasa, Mitsuba shows up in front of the Minamoto household, promising to tell Kou anything he wants to know if he can show him a good time. This turns out to be harder than you might th...






  • As Mitsuba’s body falls apart before Kou’s eyes, the young supernatural reveals a secret of his existence he’s been keeping all this time......



  • Back at school, Nene can hardly wait for the start of the fall festival! As is tradition at Kamome Academy, the high school first-years will be putting on a play -- but her class’s chosen program seems to have an unsettling history at this school.....



  • Nene heads off school grounds with Mitsuba for some rare (and chaotic) quality time between just the two of them, and gets some good advice thrown in for the bargain. On the verge of a major breakthrough in her relationship with Hanako-kun, she rushe...



  • The school festival begins! What fun shenanigans will the gang get up to? Read the next chapter of Toilet-bound Hanako-kun the same day as Japan!...



  • After being ripped apart by the severance between this world and the next, Nene and Hanako-kun are finally reunited. That being said, it’s not exactly a happy reunion. With their emotions running high over the seemingly intractable problem of her n...



  • Nene’s class is getting ready for their school play when a red substance suddenly starts to drip from the large clock in the auditorium… Read the next chapter of Toilet-bound Hanako-kun the same day as Japan!...



  • Nene is whisked away by Tsukasa in the clock keepers’ boundary, and now she must do all she can to return to Hanako’s side…! Read the next chapter of Toilet-bound Hanako-kun the same day as Japan!...



  • Tsukasa drags along a time-rewinded Nene to seek out the Clock Keepers’ yorishiro, but he soon learns that looking after a child is harder than it seems… Read the next chapter of Toilet-bound Hanako-kun the same day as Japan!...



  • It’s spooky, it’s kooky, it’ll have you playing hooky—it’s another Toilet-bound Hanako-kun artbook, Aidalro Illustrations 2! This installment contains over two hundred images, including all the color pages published in M...



  • As Akane and Teru search for the culprit behind the time freeze, Akane receives a message from his fellow Clock Keepers…Meanwhile, Nene and Tsukasa are trapped in a birdcage with no way out but…down?! Read the next chapter of Toilet-bound Hanako-...






  • The Clock Keepers’ trial to determine the culprit behind the Academy’s time freeze has begun. Hanako, Nene, Teru, and Tsukasa must prepare to plead their innocence…or face punishment as a time offender! Read the next chapter of Toilet-bound Han...



  • Thanks to the manipulations of those in the broadcast room, Nene and Sumire find themselves trapped once more in No. 6’s boundary. While Hanako-kun isn’t there to help them escape this time, they aren’t alone -- No. 6 himself is there as well! ...



  • Tsukasa has got his sights set on the Clock Keepers’ yorishiro, and he’ll stop at nothing to destroy it! Meanwhile, Mitsuba, still caught in the time freeze, is finally rescued by a friendly face…or is he? Read the next chapter of Toilet-bound ...



  • With the guardians of the past and present in tatters, it seems the Clock Keepers fare no chance against Tsukasa…but the No. 1 school mystery still has a few tricks up its sleeve. This time, they’ll address the disaster -- at its source! Read the...



  • Now that the gang has escaped from No. 6’s boundary, Kou has found renewed resolve to become an exorcist like his big brother. But he doesn’t expect to come face-to-face with the supernatural who disappeared not so long ago—Mitsuba!...


Frequently Asked Questions (FAQ)

AidaIro has published 44 books.

The next book by AidaIro, Toilet-bound Hanako-kun, Vol. 20, will be published in September 2024.

The first book by AidaIro, Toilet-bound Hanako-kun, Vol. 1, was published in August 2017.

No. AidaIro does not write books in series.