a world where every person is born with a power that reflects their existence, there is one boy who was born with something that should never have existed - Corruption, an unknown element born from the distortion of the world, human suffering, and the darkness hidden within the human mind. Kurohashi Ryu never understood why he was different, until he met Kotone - a mysterious girl whose existence cannot be perceived by anyone except him. She is not human. She is not a spirit. She is something that was never supposed to exist in this world. As the truth behind the world begins to unravel, Ryu is forced to face lies, loss, betrayal, and the parts of himself he tried to ignore. He slowly discovers that the greatest enemy may not be something standing in front of him... But something buried within himself. In a journey filled with shattered identities, distorted realities, and impossible choices, Ryu must answer the question no one else can answer for him: If your existence was born from a mistake... do you still have the right to keep living?