

Overview
In the near future, a sudden and unexplained sea rise has left much of human civilization underwater. Ikaruga Natsuki, a boy who lost his mother and one of his legs in an accident some years earlier, returns disillusioned from a harsh life in the big city to find his old countryside home half-swallowed by the sea. Left without a family, all he has to his name is the ship and submarine left to him by his oceanologist grandmother, and her debts. His only hope to restore the dreams for the future that he has lost is to take up an opportunity presented to him by the suspicious debt collector Catherine. They set sail to search the sunken ruins of his grandmother's laboratory in order to find a treasure rumor says she left there. But what they find is not riches or jewels; it is a strange girl lying asleep in a coffin at the bottom of the sea, Atri. Atri is a robot, but her appearance and her wealth of emotions would fool anyone into thinking she's a living, breathing human being.
Cast
33Open an episode for ages at its air date.












Full cast · 33





















- TMDB ID
- 210875 ↗
- First aired
- 2024-07-14
- Last aired
- 2024-10-06
- Status
- Ended
- Episode runtime
- 24 min
- Genres
- Animation, Drama, Action & Adventure, Sci-Fi & Fantasy
- Creators
- Unknown
- Countries
- JP
- Languages
- Japanese
Family guidance
Age ratings
16Spain (ES)
Not recommended for viewers under the age of 16.
TV-14United States of America (US)
This program contains some material that many parents would find unsuitable for children under 14 years of age.
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Kids-In-MindEditorial 0–10 ratings
Kids-In-Mind rates movies, not TV series. This says nothing about the content of this series.
All regional certifications (7)
16Spain (ES)
Not recommended for viewers under the age of 16.
TV-14United States of America (US)
This program contains some material that many parents would find unsuitable for children under 14 years of age.
MAustralia (AU)
Recommended for mature audiences; M-rated content may only be broadcast between 8:30 p.m. and 5:00 a.m. on any day, and additionally between 12:00 p.m. and 3:00 p.m. on schooldays.
14Brazil (BR)
Content suitable for viewers over the age of 14.
TV-14Puerto Rico (PR)
No additional details available.
15South Korea (KR)
This rating is for programs that contain material that may be inappropriate for children under 15, and that parental discretion should be used. Examples include most dramas, and talk shows on OTA (over-the-air) TV (KBS, MBC, SBS), and many American TV shows/dramas on Cable TV channels like OCN and OnStyle. The programs that have this rating may include moderate or strong adult themes, language, sexual inference, and violence. As with the TV-MA rating in North America, this rating is commonly applied to live events where the occurrence of inappropriate dialogue is unpredictable. Since 2007, this rating is the most used rating for TV.
TV-14US Virgin Islands (VI)
No additional details available.
