Kazuha Tooyama

Bound by childhood memories and a shared history, this spirited investigator often finds herself caught up in Heiji Hattori's high-stakes criminal cases. Though their families have been close since before birth, her relationship with Heiji remains a complex mix of intense jealousy and unspoken romantic tension. While she possesses a sharp, deductive mind, she is equally known for her fiery temper and deep superstitions, often carrying handmade lucky charms to protect her and her lifelong best friend.