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.
It works better if you don't try as hard.
Es klappt besser, wenn man 
sich nicht so sehr anstrengt.
Resulta mejor si no le hacemos fuerza.
Más vale maña que fuerza.
Il ne faut pas trop forcer.
È meglio se non ci metti così tanta forza.
É melhor se você não se esforçar tanto.
Ты поймаешь, если
не будешь так напрягаться.