Haikyu!! (ハイキュー!!, Haikyū!!, from the kanji 排球 lit. "volleyball") is a Japanese shōnen manga series written and illustrated by Haruichi Furudate.
Junior high school student—Shōyō Hinata—gains a sudden love of volleyball after seeing a game on television. Although short in height, he becomes determined to be like his favourite player, nicknamed the "Little Giant", after seeing his plays. However, his dreams are destroyed in his first official match, where his team suffers a crushing defeat against the junior championship favourite team, which includes the so-called "King of the Court" Tobio Kageyama. Hinata vows to follow in the footsteps of the "Little Giant" and enter Karasuno High School to defeat Kageyama, only for the two to wind up as unlikely teammates. By combining the genius-like qualities of Kageyama with Hinata's sheer athleticism, the duo create a brand-new volleyball tactic. Their new combo allows them to get over their differences, and a strange alliance is created between the two. They are constantly filled with fun and laughter, which rubs off on their teammates. Thus begins the Karasuno boys' volleyball team's journey to the nationals.