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.
What are you doing?
Was tust du da?
Qu’est-ce que tu fiches ?
Che stai facendo?
O que está fazendo?
Чем ты занимаешься?