Heaven's Secret Requiem

Dmitry, a battle-hardened general, discovers a mysterious girl in the snow who becomes his greatest ally in the fight for humanity's survival. When the apocalypse looms, she reveals a dark secret: she is the heir to Hell, and together they must find the Book of the Apocalypse to end the war between Heaven, Hell, and Earth.

General Dmitry leads perilous missions into a ravaged world, his sole purpose to scavenge resources and ensure the survival of his people, including the enigmatic Amethyst Blackwood.