The Iwatobi High School Swim Club is participating in a joint training camp with the Samezuka Academy and Soufuukan High School teams. Sousuke is also participating as an alumnus. In the midst of the excitement, Rei and Nagisa notice that something is odd about Romio's swimming. Then Shizuru tells them the story of what happened to Romio in middle school...
the greatest treasure of 
Russia's swimming world,
بالكنز الأعظم في عالم السّباحة الروسي
der als größter Schatz des
russischen Schwimmsports gefeiert wird:
el mayor tesoro ruso
del mundo de la natación,
el mayor tesoro ruso
del mundo de la natación,
aujourd’hui coach en Australie,
a dit ceci…
e che ora sta facendo l'allenatore,
de "o maior tesouro do
mundo da natação russa",
называют величайшим сокровищем
российского мира пловцов: