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.
Whew...
Puuh...
¡Qué alivio...!
Menos mal...
Ouf…
Meno male...
Ufa...
Слава богу...