When a popular video game company's idol-spokeswoman/head developer starts receiving death threats, the Narumi Detective Agency is brought in to protect her.

The final confrontation with the Meganeura Dopant is at hand, and just as Tokime starts to settle in at the Narumi Detective Agency, a threatening force in the city's underworld begins to stir.

W and Accel are forced out of Shadow Fuuto by the nuclear-powered Nikaido and his army of monstrous Road Dopants. Will they find their way back in time to rescue Tokime and Rentaro?