Haruka and the other club members decide to hold a training camp to prepare for prefectural.  Each member follows his own regimen.  However, Rei is unhappy about falling behind and heads back into the ocean at night to practice.
so stamina will be an issue.
also wird Ausdauer ein Problem sein.
l’endurance est un souci.
quindi dovremo lavorare sulla resistenza.
então resistência será 
um dos problemas.
так что главная проблема — выносливость.