Dimension W unfolds in a near future where humanity has discovered a fourth dimension, Dimension W, and the seemingly limitless energy hidden within it. To tap that power, engineers create coils, devices that connect to Dimension W and make this new energy usable. By 2071, New Tesla Energy has turned those coils into the backbone of the world’s power supply, but its monopoly also fuels a black market of illegal, unofficial coils that spread through the streets.
At the center of the story is Kyouma Mabuchi, a former soldier who distrusts coil-based technology so deeply that he still drives a gas-powered car. Now working as a Collector, he earns money by hunting down illegal coils and the people who traffic them. One routine job changes everything when he crosses paths with Mira Yurizaki, an android tied to the "father" of the coils. As strange incidents begin to stack up, Kyouma and Mira form an unlikely partnership and follow the trail of clues behind Dimension W, uncovering the forces hidden beneath the world’s energy boom.