Toilet-bound Hanako-kun manga volume 9 features story and art by AidaIro.

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...

Toilet-bound Hanako-kun manga volume 10 features story and art by AidaIro.

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”?!

Toilet-bound Hanako-kun manga volume 11 features story and art by 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 overcome this ghost's regrets and self-loathing to find her way home?!

Toilet-bound Hanako-kun manga volume 12 features story and art by AidaIro.

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...