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.
What difference is it going to make if she 
remembers her dead master's orders or not?
ما الفرق الّذي يُشكّله تذكّرها
أوامر سيّدتها من عدمه؟
Was hat sie davon, wenn sie sich
an den Befehl ihrer alten Meisterin erinnert?
¿De qué servirá que recuerde
la orden de su difunta ama?
¿De qué servirá que recuerde
la orden de su difunta ama?
À quoi ça l’avancerait
de se souvenir de cet ordre ?
Una volta che si ricorda l'ordine
della padrona morta, cosa ci guadagniamo?
Que diferença faz se ela se lembra ou não
da ordem da mestra morta dela?
Ну вспомнит она поручение
почившей хозяйки, и что дальше?