The world... Where Humanity has fallen, and Mother Nature has turned against her own creation. The Earth is no longer the planet it once was. Twisted by a mysterious distortion, nature itself has become unpredictable, dangerous and wrong. From the ruins of a sunken nation rises Menma, a sentient flower-being known as an Opium, born from the Lotus and raised in isolation by a silent girl in white. With no knowledge of the past and only fragments of the world before, Menma begins a desperate quest to escape his crumbling island and uncover the history behind Mother Nature's rage. Saint-Genisis is a dark atmospheric fantasy about identity, survival and the haunting cost of Mother Nature's change.