The anime series "Haikyuu!!" has had a significant impact on youth participation in volleyball in Japan. The popularity of the series has sparked increased interest in the sport among young people, leading to a rise in volleyball club memberships and participation in school teams. Many fans of the anime have been inspired to take up volleyball and pursue the sport seriously, contributing to the growth of the volleyball community in Japan. The series has also helped to promote the values of teamwork, perseverance, and sportsmanship, encouraging more youth to get involved in the sport.