Kazuha's Story
Toyama Kazuha is from Osaka, and she is Hattori Heiji's childhood friend. She first met Conan and Ran when they were visiting Osaka, and she thought that Ran was the "Kudo" that Heiji talked so much about--and Kazuha was jealous! But after the misunderstanding cleared up, she became much more friendly.

About Kazuha
Kazuha, like Ran, is a fighting-girl, although her style is not karate. She gets jealous very quickly and, like many people from Osaka, is very passionate, but her personality can also be very sweet and caring. She is definitely one of those whose words don't match what she thinks.

Friends & Family
Hattori Heiji and Toyama Kazuha have been best friends since they were very young, and they have a very special onamori (a good-luck charm) to prove it. She loves Heiji very much, although she would not admit it... >.< She claims that she's Heiji's "big sister" and has to watch over him, but deep down they share a very strong bond of love.
Kazuha's father is the head of the Osaka City Police Department and gets along quite well with his daughter. Not much is known about her mother.
Since we don't know much about what goes on in Osaka, we don't exactly know if Kazuha has a girl friend. But she and Ran are good friends~once their misunderstanding was cleared up, that is...