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.
Once you dive in, it will immediately 
bare its fangs and attack.
Sobald man hineintaucht, 
zeigt es seine Krallen und greift an.
Cuando te sumerges en ella,  de inmediato 
te ataca mostrando sus colmillos.
Y cuando te sumerges en ella, 
te muestra sus colmillos.
Dès qu’on y plonge, 
elle montre les crocs et attaque.
Una volta dentro, tirerà fuori 
i suoi artigli e attaccherà.
Ela mostra suas presas 
quando você pula nela.
Только ты погружаешься,
как она обнажает свои клыки и нападает.