Prefecturals are over and the Iwatobi Swim Club members are pleased by the progress they have made.  A local summer festival gives them an opportunity to relax.  When Nagisa finds out that Rin is also at the festival, he orders Rei to follow Rin and make sure that Haruka and Rin do not meet.
But it may end up having 
the opposite effect.
Aber es könnte am Ende 
das Gegenteil bewirken.
Esto podría tener el efecto contrario.
Esto podría tener el efecto contrario.
Mais ça risque 
d’avoir l’effet inverse.
Ma potrebbe portare al risultato opposto.
Mas talvez isso tenha o efeito contrário.
Только вышло совсем наоборот.