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.
I'm going to a swimming school.
Ich gehe auf eine Schwimmschule.
a estudiar en una escuela de natación.
Entraré en una escuela de natación.
Pour entrer 
dans une école de natation.
Andrò a studiare nuoto.
frequentar uma escola de natação.
Буду ходить в школу плавания.