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.
You were in the bath with 
your swimsuit on again?
Du warst schon wieder 
mit Badehose in der Wanne?
¿De nuevo estabas con 
el traje de baño puesto?
¿Te has vuelto a meter con el bañador?
Tu as encore pris un bain 
avec ton maillot ?
Sei di nuovo entrato 
nella vasca con il costume?
Você precisa vestir sua roupa de 
banho dentro da banheira?
Опять полез в ванну в плавках?