In the near future, much of the world has been forgotten at the bottom of the ocean due to rising sea levels. Natsuki Ikaruga, who lives in a small town surrounded and stranded by the sea, is invited by a mysterious woman, Catherine, to search for a treasure in his grandmother's house who was a marine geologist. One day, he dives to the bottom of the ocean in a submarine and encounters a mysterious capsule with a girl sleeping inside. The girl was a humanoid so sophisticated that she could be mistaken for a human.
-She's probably worth a pretty penny! 
-Huh?! You're going to sell her?!
!إنّها غالباً تساوي الكثير من المال - 
ماذا؟! ستبيعينها؟ -
Das gibt ein nettes Sümmchen.
-La venderemos por un dineral.
-¿Van a venderla?
-La venderemos cara.
-¿Vais a venderla?
– Ça va rapporter gros.
– Vous allez la vendre ?
La venderemo per un sacco di soldi!
Ela deve valer uma grana boa!
Можно навариться.