Kazuha Tooyama

Heiji Hattori and Kazuha Toyama grew up together and are easily each other's best friend and mutual love interest. They have gone at the same school since they were in pre-school. Neither of them have been shown to have other close friendships outside of their relationships with Shinichi and Ran, though Heiji does have a rivalry with fellow kendo practitioner Okita. They often spend time together, and Kazuha typically comes along when Heiji visits the Mouri's or vice versa, and is usually getting caught up with Hei…