"Hanako-san, Hanako-san...are you there?"

At Kamome Academy, rumours abound about the school's Seven Mysteries, one of which is Hanako-san. Said to occupy the third stall of the third floor girls' bathroom in the old school building, Hanako-san grants any wish when summoned. Nene Yashiro, an occult-loving high school girl who dreams of romance, ventures into this haunted bathroom...but the Hanako-san she meets there is nothing like she imagined! Kamome Academy's Hanako-san...is a boy!

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 theymeet 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...