"It's been three days since they returned from within School Mystery Three, the Hell of Mirrors. To cheer up the depressed Kou, Nene heads to the Boundaries' Tanabata festival. She was supposed to be enjoying the festival with Hanako-kun and Kou, but suddenly she finds herself fifty years in the past-and happens to meet the living Hanako-kun there!?"--Provided by publisher.

Translation of Jibaku shonen Hanako-kun volume 8. Translated from the Japanese. Reads from right to left. "First published in Japan in 2018 by Square Enix Co., Ltd."--Colophon.