It's time for the annual competition between the two rival teams: Nankatsu and Shutetsu. But for Tsubasa and Wakabayashi, this match is more a duel between them than a championship event. From the first minute of the game, the goaltender expects Tsubasa to go to the attack to try to score him points. But to the general surprise, Tsubasa takes the position of libero: he plays in defense! It's a strategy developed by Roberto to destabilize the opponent... In this way, will Nankatsu manage to protect his goals against the formidable attackers of Shutetsu?