She 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 Tsuchisaka caused by the Lan Evo team. Keisuke went on to win the race with her car, instead of the loaned FC Ryosuke planned for him to use (as Keisuke broke the rule on car borrowing). Unfortunately for her, Keisuke chooses to focus on Project D to the exclusion of all romantic relationships.
Kyoko's FD is a single turbo (compared to Keisuke's twin-turbo FD). Because of this, it has more torque and more turbo lag despite the power output being almost the same.
|Act 1:||Absent||Act 13:||Appears|
|Act 2:||Absent||Act 14:||Absent|
|Act 3:||Absent||Act 15:||Absent|
|Act 4:||Absent||Act 16:||Appears|
|Act 5:||Absent||Act 17:||Absent|
|Act 6:||Absent||Act 18:||Appears|
|Act 7:||Introduced||Act 19:||Absent|
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- In the Animax version of Initial D: Fourth Stage Kyoko is briefly voiced by a well known Filipino actress, Angel Locsin who is well known for modeling as a race girl in local auto shows, as well as portraying the Filipino superhero Darna in the 2005 TV series of the same name. In the second half of the series, she was replaced by Klariz Magboo due to Angel's conflicting schedules with her acting career.
- Kyoko was never shown watching the last race between Project D and Sidewinder for unknown reasons.
- She is the only female opponent Project D faced, as well as the only female opponent that Keisuke raced.