After hearing about what happened in the past, Rei goes to Samezuka Academy to ask Rin what he wants. The night before Iwatobi and Samezuka leave for regionals, Rin calls Rei to explain how he feels about the relay. And then, Samezuka announces its lineup for the relay.
I'm going to show you how good I can be.
Ich werde dir zeigen, 
wie gut ich sein kann.
Te mostraré qué tan bueno soy nadando.
Te mostraré lo bueno que soy nadando.
Je te montrerai 
ma meilleure nage.
Ti farò vedere cosa significa nuotare davvero.
Eu vou te mostrar o quão bom eu posso ser.
Я покажу тебе, на что способен.