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.
I-I won! I just won at the game of life!
!ر-ربحت! ربحتُ في لعبة الحياة للتو
G-Geschafft! Mein Leben
hat wieder einen Sinn!
¡Gané la apuesta de mi vida!
¡He ganado la apuesta de mi vida!
Le jackpot !
On vient de toucher le jackpot !
Ho... Ho vinto! Ho vinto la lotteria della vita!
G-Ganhei! Eu ganhei na loteria da vida!
Победа! Жизнь удалась!