Author: AidaIro, AidaIro
Fantasy 
Published 26/04/2022 by Little, Brown & Company (Yen Press) in the United States as part of the TOILET BOUND HANAKO KUN GN series 
Paperback | 178 pages
Nene and Akane are rescued from the clutches of a horde of supernaturals bySchoolMystery No. 6...who then immediately kidnaps Aoi?! With so many SchoolMysteryseats unfilled and the long, dark night of Urabon here at last, Aoimay be the only onewho can save the school from disaster--but at what cost?