Coach Sasabe begins training the Iwatobi Swim Club for the upcoming tournament. Meanwhile, Rei is unhappy about the fact that he's the only one who doesn't know about what happened with Rin in the past.  After Rin expresses his frustration, Haruka decides to tell him about what happened when they were in grade school.
So that's why you quit the 
swim club in middle school.
Deshalb hast du also den Schwimmclub in der Mittelschule verlassen.
Por eso fue que dejaste la 
natación en la secundaria.
Por eso dejaste la 
natación en secundaria.
C’est pour ça que tu as arrêté 
la natation au collège.
Ecco perché hai smesso di nuotare, alle medie.
Então foi por isso que você desistiu do
 clube de natação no meio do ginásio.
Потому ты и ушёл из
клуба в средней школе.