Yoko Wakana

Yoko Wakana (若菜 陽子 Wakana Yōko) is a crazy cop in the traffic division who will go to the extreme to bring suspects to justice.

Plot
Yoko first appears in A Fruitless Lunchtime of as she chases after Kaname Chidori and Sousuke Sagara, but she ends up trashing her patrol car.

Trivia

 * The name Yoko means "light, sun, male" (陽) (you) and "child" (子) (ko).
 * Yoko's surname Wakana means "young, immature" (若) (waka) and "vegetables, greens" (菜) (na).