As the son of a former star player on Japan’s national volleyball team, Gaku Shishiya has spent his volleyball career striving—and failing—to be an ace hitter like his father. The tension between them hits breaking point when a promising player on Gaku’s middle school team becomes his father’s new mentee, and as payback for the betrayal, Gaku aims to reinvent himself as a hitter’s ultimate nemesis: the libero, a defensive specialist. With his high school career just beginning, can Gaku truly rise above the legacy that nearly destroyed him…?