The Hokuto no Ken manga by Buronson and Tetsuo Hara was adapted into two animated television series produced by Toei Animation. The original series, simply titled Hokuto no Ken(北斗の拳), lasted 109 episodes, which aired on Fuji TV from October 11, 1984 to March 5, 1987, adapting the first 136 chapters of the original manga. A sequel series, Hokuto no Ken 2, took over the previous series' time slot and lasted 43 episodes, airing from March 12, 1987 to February 18, 1988, which adapts chapters 137 to 210 (the remainder of the manga was not adapted).