AidaIro

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 help this spirit overcome her regret and self-loathing and find her way home?!

"At Kanmore 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 any wish when summoned. Nene Yashiro, an occult-loving high school girl who dreams of romance, ventures into thus haunted bathroom ... but the Hanako-san she meets there is nothing like she imagined!"--Back cover

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...

"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...

"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 nearly depleted lifespan, 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, this ancient supernatural knows that Aoi may be the only one who can save the school from disaster--but at what cost?"--Page [4] of cover.

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...

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 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...but just who exactly is this “Mitsuba”?!

"Out of nowhere, Nene finds herself being dragged inside a mirror, where she meets the spirit of a young boy calling himself Mitsuba. As the two attempt to escape together, they soon find that danger worse than mere imprisonment lurks within the boundaryof School Mystery No. 3, the Hell of Mirrors. 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...?"--

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...