Hayakawa Kyoko

Japanese name:

早川京子

The second heroine beside Riko.
She attends the Seiran Girl School.
A former Yankee girl and leader of a girls' gang, but because of her beauty, she's subject to many punks' attempt of hitting on.
She may look delicate, feminine, and naive, but she actually has a tough attitude.
She's Itou's girlfriend and loves him very much: in fact, she often worries about him and doesn't want him to get into fights.

wikipedia