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.
In human life, accomplishment 
must bring total joy.
Im menschlichen Leben, müssen 
Errungenschaften vollkommenes Glück bringen.
Si hay algo que tiene sentido 
en la vida, eso es el placer.
El placer es lo único que 
tiene sentido en esta vida.
« L’homme qui sait comprendre la vie  
doit se réjouir autant qu’il peut,
"Nella vita umana, i nostri risultati 
devono portare una totale gioia.
Se a vida tem algum sentido,
 ele é se divertir.
Достигнув жизни счастья,
Испей его до дна,