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.
No, it wasn't a dream!
Nein, es war kein Traum!
¡No, no fue un sueño!
¡No, no ha sido un sueño!
Non, tu ne rêvais pas !
No, non è stato un sogno!
Não, não foi um sonho!
Да какое там «приснилось»!