One day, Nene goes to school as usual, only to find Hanako-kun acting like one of her normal classmates...!? Weirder still, even though he's supposed to be a ghost, nobody else seems to find the presence of this so-called "Amane-kun" strange at all. Determined to get to the bottom of this, Nene's search leads her to a mysterious tower...

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 of the Seven Mysteries is mixed in with her classmates...

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 like Hanako-kun and may have the answers they've been looking for-but they soon find the Red House is much easier to enter than to leave...

The origin of AidaIro’s masterpiece! Toilet-bound Hanako-kun was originally published in Monthly GFantasy as a self-contained short series, and you can read those three chapters here along with AidaIro’s debut work, “The Beloved Living Dead.” Come and see where it all began!

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" up close might just give Nene a hint on how to resolve the school's impending crisis and save Aoi-but she'll have to survive it first! Meanwhile, on the very banks of the Far Shore, Aoi and Akane finally put into words exactly what they mean to each other...

Nene has suddenly been dragged inside a mirror, where she meets the spirit of a young boy calling himself Mitsuba. As they try to escape, the threat of School Mystery No. 3, the Hell of Mirrors, draws ever closer. Nene may have finally gotten herself into a mess that even Hanako-kun can't save her from-but will someone else come to her rescue...?

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 of letting Aoi be sacrificed instead, but when every supernatural in the school starts to disappear, they realize it might already be too late. Is it time to say goodbye to the paranormal inhabitants of Kamome Academy once and for all?!

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 middle school division. Kou has no idea who this guy was when he was alive, but that doesn't mean he can't help him solve his unfinished business! Will the junior exorcist be able to help this friendly ghost pass on...?

It's been three days since they returned from within 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 suddenly she finds herself fifty years in the past-and happens to meet the living Hanako-kun there!?

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 Shijima. Can Nene overcome this ghost's regrets and self-loathing to find her way home?!

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 Number Four’s boundary. Faced with that cruel choice, Nene instead proposes a way to escape from this fake world to the boy she can’t help but call “Hanako-kun.” At the same time, Kou tries to win over Mitsuba as well-but just who exactly is this “Mitsuba”?!

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. To rescue her friend from the clutches of one of the school's infamous Seven Mysteries, she and Hanako-kun infiltrate the Misaki Stairs. The second volume of the retro horror romantic comedy about an occult girl and an inhuman supernatural boy is finally in print!

A beautiful collection of the first ten volumes of Toilet-bound Hanako-kun, featuring everything from the very beginnings of the series to the big twist of the fan-favorite "Picture Perfect" arc. If you just can't hold it in anymore--"it" being your excitement--getting your hands on this box set is the only way you can find sweet relief!

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. To make matters worse, Hanako-kun is pulling out all the stops to keep them from leaving. And when Nene pours all her feelings into trying to convince him to let them go, she's shocked by the genuine emotion that wells up from out of him...

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 conclusion, the secret of Hanako-kun's assistant Nene is brought to light! What could it possibly be!?

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 when they get a break from all that? Come and see what the characters of Toilet-bound Hanako-kun do on their laid-back afterschool days!

After being ripped apart by the severance between this world and the next, Nene and Hanako are finally reunited. That being said, it's not exactly a happy reunion-with both their emotions running high, they're all too quick to give in to anger. Meanwhile, as the Minamoto brothers have a spat of their own, No. 6 shows up out of nowhere-and he's out for blood...

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, Aoi may be the only one who can save the school from disaster--but at what cost?

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 4:00 P.M. Bookstacks! The rumors say that a secret door in the library leads the way to a supernaturally special collection. The Bookstacks know everything about everyone who's ever attended Kamome Academy-past, present, AND future! But whatever you do, don't read the red books...or your future will be drenched in blood!

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! Featuring all the color pages published in Monthly GFantasy from 2015-2019, over 170 photos of merchandise and collaboration cafés, and brand-new drawings you can only see here!