Watch Haikyu!! Season 4 Episode 6 Online

On their first day back, the boys practiced on their serves. Kinoshita is able to float serve while Yamaguchi has yet to master a jump serve. Hinata surprised everyone by being able to receive Kageyama's powerful serve. For personal training, Kageyama coaches Hinata on his jump technique by using Hoshiumi as his reference. Date Tech comes over to Karasuno for a friendly match. The boys face various new challenges from Date Tech's newly evolved "Iron Wall" defense.