Tomoe Oujima, a former roller-skating delinquent famed for daring acts like skating down freeways, endured a profound loss when a friend died in a roller skating accident. This tragedy led her to join the stunt group Green Ship, where she became romantically involved with its leader, Kazusa Himuro. She later uncovered Green Ship's true purpose: a front for assassin training and guerrilla operations. Exposed to this danger, an undercover cop instructed Tomoe to warn Iori Toujou, the adopted heir of a business magnate, that his own family had hired Green Ship to kill him.

Escaping the organization, Tomoe found Iori and delivered the warning. Understanding his peril, she committed herself to protecting him from both Green Ship and her former lover, Kazusa. Harnessing her formidable roller-skating skills and fiery spirit, she evaded the organization while safeguarding Iori, reigniting her determination to fight against those who now sought her death.