Nene and Kou learn that to return to their world, they must kill the versions of Amane Yugi and Sousuke Mitsuba living in the canvas of No. 4's boundary. Nene tells Hanako-kun of a different way to escape the fake world, while Kou tries to find favor with the mysterious Mitsuba.

Translation of: Jibaku shonen Hanako-kun. "First published in Japan in 2019 by Square Enix Co, Ltd."--Copyright page. Printed Manga-style; book opens from left to right. Pages are read from right to left.