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 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!

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!

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 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 try to curse her ex to death, Kou fall off a roof (more than once), or Hanako-kun butt heads with a new group of School Mysteries, come and see where it all began!

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...

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"?!

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...