Reiko, the founding leader of the all-girl biker gang Purple Emperor, known for tearing through the streets in her customised bike and tokkōfuku uniform, decides to retire. She dreams of making a name for herself in Tokyo, but the world isn’t kind to a high school dropout with a biker gang past. Amid her struggles, she meets Ryuji, a man working for a trading company...

"Abandoning her lover and casting aside her new life, the former leader of the all-girl gang awakens—for the sake of her comrades!"