The Iwatobi Swim Club needs one more member before it can participate in relays.  Nagisa has set his sights on his classmate Rei, who is a member of the track team.  Despite Rei's refusal to join, but Nagisa appears intent on recruiting Rei into the swim club.
These time trials are just for practice,
Das Zeitschwimmen ist nur zur Übung,
Las pruebas de tiempo solo son de práctica,
Las pruebas de tiempo 
solo se hacen para practicar,
Ce n’est pas grave si tu es lent,
Le prove a tempo sono 
sostanzialmente esercitazioni,
Essas tomadas de tempo são
 somente para o treino,
Этот заплыв на время — лишь тренировка.