"Hokagogakari" 3 volumes. Kei and the others find out that there is a person who is escaping the role of "kake" ...?

"Hokagogakari" 3 volumes. Kei and the others find out that there is a person who is escaping the role of "kake" ...?
Volume 3 of "Hokago Gakari" (author: Manabu Koda, illustration: potg) is now on sale from Dengeki Bunko (KADOKAWA)....

The linked article is in Japanese.