Capitalizing on the popularity of the all-female street racing team known as Impact Blue which appeared in First Stage, this OVA focuses on Impact Blue’s dynamic duo of Mako and Sayuki rather than Takumi and the usual main cast.
As Extra Stage begins, Mako is battling emotional wounds from what she thinks was a rejection by Iketani, while Sayuki’s childhood friend Shingo (of the Myogi Night Kids) and his teammate Nakazato arrive to warn them about Team Emperor, which defeated the Night Kids on their home course just as they have so many other street racing teams from around the region. Mako’s driving has been adversely affected by her preoccupations, and she worries about her ability to measure up to the Emperor’s challenge in her current emotional state. Finally, a pair of Emperor affiliated Evos show up in Usui. The challenger, an arrogant blonde driving an Evo 4, belitted the female racers and felt confident enough to win easily. Later on in the race, the Evo 4 could barely keep up with the Sil-80, until the battle was finally decided in a extended corner, called C-121. where the Evo 4 hit the guardrail and lost control. Shingo and Nakazato were late and didn’t get to see the race. Thinking the girls also lost, they consoled them saying they lost in their home course as well, but Sayuki unexpectedly told them they won. The Night Kids leaders were startled, thinking they raced against the top Emperor drivers whereas they only defeated an off-beat member.
Though Mako decides she doesn’t need a man in her life for a while, she gradually develops a relationship with a friend of Shingo’s named Miyahara after Shingo and Sayuki discreetly play matchmaker. Miyahara is a street racer himself, not a good one though, and he intends to give it up because he believes he has reached the highest level he possibly can, with no chance of progressing further. He has lost interest and intends to move on. He drives a red MR2 and plans to switch to an SUV in pursuit of settling down after racing. Mako feels differently, knowing there are many drivers better than her whose level she wishes to attain. As Mako and Miyahara grow closer, Miyahara reveals that he wishes Mako would quit racing also for her safety’s sake, because if she was his girlfriend he would be consumed with worry for her each time she raced.
However, after Mako takes him on a drive on an unknown pass, that was home to the mountain snow resort they were vacationing at, he finally understands why she will not give up racing and realizes that she is in love with another man, Iketani.
– Source : Wikipedia