The world is reduced to a silent black and white silent film, color is the forbidden magic trapped in endangered creatures. Silas, the color extractor, keeps the last iridescent snail in his possession. The snail's shell is flowing with "hope blue" that can awaken hope. When he tried to patent the color to end the massacre, the snail shell revealed a secret message for help, pointing to the legendary forbidden place that sealed the color of the world. The film committee, the guardians of order in black and white, has sent out its hounds, and the world is slowly fading into pure white nothingness. Silas must unravel the mystery of the sensory seal three hundred years ago before color is completely extinct, and make the ultimate choice: sacrifice the ancient souls trapped in color to liberate the world, or let mankind remain speechless forever in the silent grayscale.