Most people have a dream. Something to fulfill before they inevitably wilt away, leaving their footprint on the world. Airi, a young withering soul, has no dream. A tomb of ceaseless despair, alone, without value. Somber and wistful, she decides to end her rotting life. Failing to do so, however, the bitter tomb, is suddenly filled. Filled with significance, and ambition. A new family, a profound objective, and a new life. "An eye for an eye."