The girls in the Breakwater Club learn how to float properly just in case they ever fall into the ocean. Later on, Hina goes to battle with a heron, but then notices it has a fishing line tangled around its leg.
If I were to fall into the ocean...
...إذا وقعت  مجددا في المحيط
Wenn ich ins Meer fallen würde …
Si estuviera por caer al océano…
Si jamais je tombe à la mer…
Se eu caísse no oceano...