With the world set to unravel in a year after the "Pacific Explosion", Asahi, a reclusive and disillusioned artist, has no plans to leave his apartment—until an old friend, Haruto, reappears with an urgent request. Reluctant at first, Asahi is forced to confront his past when a mysterious letter and a haunting dream pushes him towards making a decision

Now, he embarks on a journey across a collapsing world, encountering remnants of humanity clinging to hope, chaos, and the whispers of shadows that claim to know the truth. As they travel through the dying world, Asahi begins to question if he was a pawn in this game of fate, or its centerpiece.

In a world on the brink of oblivion, Asahi must face the ghosts of his past, the horrors of the present, and the truth that should have never been uncovered.