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.
Why didn't you tell us?
Warum hast du uns das nicht gesagt?
Pourquoi tu n’as rien dit ?
Perché non ce l'hai detto?
Por que não nos contou?!
Почему ты не рассказал нам?