Toilet-bound Hanako-kun manga volume 16 features story and art by AidaIro.

In exchange for a life, the link between this world and the next has been severed. Even so, Nene and Kou continue looking for a way to reach the boundaries, a search that leads them to the cursed "Red House." Inside, they find a boy who looks just like Hanako-kun and may have the answers they've been looking for-but they soon find the Red House is much easier to enter than to leave...