Toilet-bound Hanako-kun

"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! Kamome...

"I'm not going anywhere." Nene and Kou want to learn more about their mysterious friend, Hanako-kun-and what better way to do that than by hunting down school mystery number five, "The Four P.M. Bookstacks"?! Rumors say a secret door in the library leads the way to a supernaturally special collection. The Bookstacks know everything about everyone who's attended Kamome Academy-past, present, AND future! But whatever you do, don't read the red books...or...

"When Nene is invited by enigmatic playboy Natsuhiko to a sketchy yet oddly enjoyable tea party, she meets Hanako-kun's "girlfriend" and his "little brother"...?! On top of that, she learns that one of her classmates might actually be a School Mystery, but she doesn't know who! Hanako offers to help -but just how far will he go to lure this supernatural out of hiding?"--

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.

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?

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, but when every supernatural in the school starts to disappear, they realize it may already be too late. Is it time to say goodbye to the paranormal inhabitants of Kamome Academy...

The Yugi family tragedy is revealed, but now the Red House may trap Kou and them all forever and they'll never be able to help Hanako-kun.