An adult visual novel produced by the developer called Light, first released in 2007. An anime version aired in Fall 2017.

h4. Characters
* [[Fujii Ren]]
* [[Honjou Erii]]
* [[Himuro Rea]]
* [[Rusalka Schwagerin]]
* [[Marie (dies irae)|]]
* [[Goetz von Berlichingen|]]
* [[Mercurius (dies irae)|]]
* [[Reinhard Heydrich (dies irae)|]]
* [[Sakurai Kei]]
* [[Wolfgang Schreiber]]
* [[Beatrice Waltrud von Kircheisen]]
* [[Ayase Kasumi (dies Irae)|]]
* [[Wilhelm Ehrenburg]]

h4. External links
* Wikipedia entry: "Dies irae":[https://en.wikipedia.org/wiki/Dies_irae_(video_game)]
Diesirae ディエス・イレ