Sayuki

Sayuki is a cheerful, outgoing girl always looking for good looking men. She's extremely flirtatious and loves to tease men and Mako herself, and also develops a small crush on Takumi Fujiwara after her and Mako's race against him. As Mako's navigator/co-driver, she is responsible for necessary callouts that may inform Mako of something important; for example, obstacles in the course, oncoming traffic, specific braking zones, etc. Notably in the race against Takumi, she instructed Mako to spin out after she entered a corner too quickly and sharply, preventing to recover safely.