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

"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 boundary of 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...?"--

"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...

"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!?"--Provided by publisher.

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?!

"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.

If Nene and Kou want to return to their own world, they have to kill the versions of 'Amane Yugi" and "Sousuke Mitsuba" that are living within the canvas of No. 4's boundary.

"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 in response"--Provided by publisher.

"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! Sumire is thrilled to be reunited with her beloved after so many years, and with No. 6 having come to terms with his feelings at long last, perhaps they have a chance to change how they left things."--

Nene goes to school and sees Hanako-kun acting like one of her usual classmates, instead of the ghost that he is. Her classmates don't see him as a ghost, so she starts investigating.