A D12 × Marshall Mathers Story Y/N is Proof’s stepsister, a hell of a singer—and a Detroit street racer with gasoline in her veins. When her world collides with D12, fast cars, faster mouths, and one Marshall Mathers turn her life into beautiful fucking chaos. Some people chase fame. Y/N just likes going fast enough to outrun it. romance is open to any character, you create the story.