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.
Sorry!
Entschuldigung!
¡Disculpe, a él se le 
quedó su traje de baño!
Lo siento, pero se le ha olvidado.
Désolé !
Scusate!
Desculpe!
Простите!