Kazumasa Hirai
平井和正
media.language: Japanese
media.homeTown: Yokosuka, Kanagawa prefecture, Japan
media.yearsActive: 1962-2015
♥: 7
Kazumasa Hirai was a Japanese SF writer, and a TV/ manga scenarist. His daughter is the mangaka [Mari Hirai](https://anilist.co/staff/100611).
