Haikyu!! is one of the most prominent sports anime of all time. Focused on an unconventional game, Haikyu!! elevated volleyball for the better, and that's all thanks to its creator. Haruichi Furudate is an influential Japanese mangaka who won the audience with his intricate yet passionate depiction of the sport through well-developed characters and an emotionally sated story.
Source:https://www.cbr.com/haruichi-furudate-haikyu-creator-trivia-fun-facts/