In a frozen dystopia where inhabitants eat flesh to survive, can the destructive powers of fire bring salvation?

In the not-too-distant past, the Ice Witch blankets the world in snow, starvation, and madness, leading the inhabitants to seek their salvation in fire. With that, an unusual destiny unfolds for two young orphans, Agni and Luna, blessed with the ability to regenerate. But will this ability prove to be more of a curse than a blessing?

In order to absorb all life, Judah has been turned into a massive tree by the Ice Witch. And just as Agni loses his will to live, Judah's sorrowful pleas for death echo in his ear. What will await the world after its destruction and rebirth is complete?