In 1937, the Osaka Mainichi Shimbun and its sister newspaper the Tokyo Nichi Nichi Shimbun covered a contest between two Japanese officers, Toshiaki Mukai (向井敏明) and Tsuyoshi Noda (野田毅), in which the two men were described as vying with one another to be the first to kill 100 people with a sword.
Pada 1937, Osaka Mainichi Shimbun dan surat kabar saudarinya Tokyo Nichi Nichi Shimbun menyoroti sebuah kontes antara dua perwira Jepang, Toshiaki Mukai (向井敏明) dan Tsuyoshi Noda (野田毅), dimana dua pria tersebut dideskripsikan bersaing satu sama lain untuk menentukan manakah yang pertama kali membunuh 100 orang menggunakan pedang.