On the day of the final battle Kanami and Hiyori disappeared into the depths of the netherworld along with Princess Tagitsu and have not been seen since. Two months have passed and the world has largely returned to normal. With their whereabouts unknown, Kanami and Hiyori wander separately through the netherworld unsure of where they are going or how much time has passed.
Special Rare Metals Research Institute
معهد أبحاث المعادن النادرة الخاصة
Untersuchungsinstitut für die Nutzung
Besonders Seltener Metalle Richard Friedman
Organización de Desarrollo de Metales Raros
Instituto Richard Friedman
Organización de Desarrollo de Metales Raros
Instituto Richard Friedman
Istituto di Ricerca sui Metalli Speciali 
Richard Friedman
Instituto de Pesquisas de Metais Especiais Raros
Richard Friedman
Исследовательский институт редких металлов