Harukanaru Toki no Naka de 6 DX

Azusa Takatsuka is on her way to visit her grandmother when a mysterious voice pulls her through space-time into a parallel Taisho era. In this Imperial Capital, strange beings called Onryou have been running wild for years, the military struggles to contain them, and fear of the end of the world is spreading. A ritual is performed to summon Ryuujin's shrine maiden — and Azusa is the one who appears. Before she can make sense of it, a demon named Darius brings her to his estate in the Enchanted Forest. She is now caught between the Imperial Army and a family of demons whose war is already well underway.