Kyoko Iwase

Nickname in English adaptations: "Kylie"

A skilled uphill driving ace in the Northwest Saitama Alliance, Kyoko Iwase (岩瀬 恭子 Iwase Kyōko) was originally the fastest in the alliance, but after racing against Keisuke Takahashi, she falls in love with her opponent. This creates a conflict of interest between defeating Project D and supporting her love. Love prevailed. Attesting to this, Kyoko later lent her FD to Keisuke after he damaged the left front suspension of his own FD in an accident during a trial run on Tsuchizaka. Keisuke went on to win the race with her car, instead of the loaned FD Ryosuke planned for him to use. Unfortunately for her, Keisuke chooses to focus on Project D to the exclusion of all romantic relationships—although he admits liking her.

Kyoko's FD is a single turbo (compared to Keisuke's twin-turbo FD). Because of this, it has lesser torque and more turbo lag despite the power output being almost the same.

Trivia

 * In the Animax version of Initial D: Fourth Stage which is the only series to be dubbed in Tagalog in the Philippines except the previous series. Kyoko is briefly voiced by a well known Filipino actress, Angel Locsin who is known for supporting the racers and modelling as race girls. Thereafter the second half of the series, she was replaced by Klariz Magboo due to Angel Locsin had conflict schedules in her acting career.