Bukotou station receives a new officer, Aoi Futaba, who turns out to be an undercover guy who's worked so long as a gal that he's a transvestite now, and a very pretty one at that. The entire station, except for the Chief, is uncomfortable with her presence, but the gang get to see Aoi's true colors when Aoi's old girlfriend arrives asking for help, not knowing who Aoi is.

A wave of motor scooter thefts hits the Bokutou district. The squad is also driven crazy by an outrageous woman, known as the Scooter Mama, who is obsessed with rushing off to every short term bargain sale in town, and breaking every traffic law along the way. And when Scooter Mama's scooter is stolen, Miyuki and Natsumi are in for the ride of their life as they attempt to track down the thieves.