Hokuto no Ken Zero: Kenshirou Den

Anime where Yuki Kajiura is credited with Music.

Fist of the North Star is a manga series written by Buronson and illustrated by Tetsuo Hara. It was one of Weekly Shōnen Jump's most popular titles during the 1980s. It is one of the best-selling manga series in history, with over 100 million copies sold worldwide (over 60 million copies in circulation in Japan).

Fist of the North Star was adapted into two anime television series produced by Toei Animation, which together aired on Fuji TV and its affiliates from 1984 through 1988, comprising a combined total of 152 episodes. It has since expanded into a media franchise, including several anime films, a live-action film, original video animations (OVAs), video games, and a series of spin-offs centering on other characters from the original story. It also has a number of video games and pachinko machines produced by Sega Sammy. A new anime adaptation was announced in September 2023.

Toshiki Hirano is a Japanese anime director, animator, and character designer. His wife is a fellow animator and manga artist Narumi Kakinouchi. Some of his works have appeared in the adult manga magazine Lemon People.

His directorial debut OVA Fight! Iczer One was a project that he and his friend Aran Rei brought to Kubo Shoten, and it became a hit that turned into a series. In the latter half of the 1980s, he directed OVAs for enthusiasts such as Dangaioh, Hades Project Zeorymer, and Daimajū Gekitō: Hagane no Oni, and gained a strong fan base.

Since the 1990s, he has been active as an animation director based at Tokyo Movie, where his Devil Lady, which combines elements of tokusatsu, splatter, horror, and action like Iczer One, was well received. He is also one of the original collaborators of his wife Narumi Kakinouchi's representative works, Vampire Princess Miyu series and Fūun San Shimai LIN series.