Manga: Toilet-bound Hanako-Kun, Vol. 14

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...