長谷川圭一
A Japanese screenwriter, best known for his work on anime and [[tokusatsu]], especially the Heisei [[Ultra Series|Ultraman]] series, and the Heisei Phase 2 and Reiwa era [[Kamen Rider]] series.

h4.External links

* "Wikipedia: Keiichi Hasegawa":https://en.wikipedia.org/wiki/Keiichi_Hasegawa
hasegawa keiichi