Inspired by the volleyball prowess of the 'Little Giant' from Karasuno High, Shouyou Hinata embarks on his own athletic journey, dreaming of reaching great heights in the sport. Despite facing challenges due to his height, he enters Karasuno High with aspirations of joining their renowned volleyball team. However, his plans take an unexpected turn when he encounters Tobio Kageyama, the formidable 'King of the Court' and a former rival. Their clash leads to a clash of egos, causing the team to reject both until they can collaborate effectively. Driven by their shared passion, Hinata and Kageyama eventually propose a solution to prove their worth. As they develop a unique setter-and-ace dynamic, Karasuno receives an invitation for practice matches from an old foe, setting the stage for renewed competition and showcasing the evolving bond between the two freshmen.