Toshihisa Kaiya

Years after Haruko's arrival, a war erupts between Medical Mechanica and Fraternity. Hidomi, a student, meets her new teacher Haruko. When Mechanica attacks, Hidomi awakens a power only Haruko can unleash to protect everyone.

This story involves the shopkeeper Suzuri of Kokumondou who sells historic books and Mizuki, granddaughter of the land owner. When Mizuki releases a somewhat cute young spider demon out of a sealed book, the pair investigate the o...