Akari Katase was a Japanese woman who served as Yoshitaka Mine's secretary during the 2000s. While Mine believed that she had feelings for him, he was let down when, after he was defeated in battle with Kazuma Kiryu at the Touto University Hospital, Katase called him and expressed her worry not for where he was, but about a Dubai stock deal. Ultimately, Mine hung up on her, and he went on to sacrifice himself to take down the corrupt CIA agent Andre Richardson.