Shintaro, Tsumugi, and their supernatural friends decide to go to the occult research club's summer camp. As it's being hosted at Hisui's family's vacation home, they're treated to lavish service while they enjoy the beach and hot spring.
This is all salt water?
‫كل هذا ماء مالح؟
Und das ist alles Salzwasser …
¿Toda esta agua es salada?
¿Toda esta agua es salada?
C’est de l’eau salée.
Quella è tutta acqua salata?
Isso tudo é água salgada?
Солёная вода.