After spending their first year of high school in peace and quiet, Haruka and Makoto run into Nagisa, a new student who was a member at a swimming club with them when they were kids.  That swimming club is being torn down, so the three of them sneak in to dig up a time capsule that they buried in the back, which is when they are reunited with Rin, the fourth member of their group who left to study abroad.
Here I was thinking you'd finally 
get to swim if you came.
Und ich dachte, du könntest endlich schwimmen, wenn du mitkämst
Yo pensé que si ibas, esta vez 
tendrías la oportunidad de nadar.
Y yo que pensaba que tendrías la 
oportunidad de nadar si íbamos.
Et dire que tu aurais 
enfin pu nager…
Pensavo che avresti 
potuto finalmente nuotare.
E eu aqui pensando que você 
finalmente poderia nadar.
А я думал, что ты наконец
поплаваешь, если пойдёшь.