When Aoharu's divine journey on the Steam Train of the Gods reaches its climax, she must confront the ultimate betrayal and decide the fate of her world. Can she maintain her resolve and find redemption on the final leg of her journey?...

In a world where steam trains hold the secrets of the universe, a young engineer discovers the truth behind her family's legacy and must confront a society that has been keeping its iron clad trust for far too long....