A former student of The Academy, an advanced school in the big city for only the brightest of students. After being forced out, he finds himself living back in the tiny coastal town his grandmother called home.

Having lost his mother and his leg at a young age in an accident, he finds himself stricken with terror when forced into dark, silent spaces.

In order to obtain the money for an advanced cybernetic leg, he buys into a plan to salvage a hidden treasure from his grandmother's sunken storehouse.

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. In gratitude for being salvaged, she makes a declaration to Natsuki. 
(Source: Crunchyroll)

[Profile (Animo Produce)](https://animoproduce.co.jp/artists/onokensho/) | [Twitter](https://twitter.com/ono_kensho) | [Instagram](https://www.instagram.com/kenshoono1005/)

Married to voice actress [Kana Hanazawa](https://anilist.co/staff/95185/).

**Non anime roles:**

- Harry Potter - *Harry Potter* franchise (Live action films; JP dub)
- [Diluc Ragnvindr](https://anilist.co/character/187554/) - *Genshin Impact* (Video Game)
- Enforcer - *Arknights* (Mobile Game)
- Miles Morales - *Spider-Man: Into The Spider Verse; Spider-Man: Across the Spider-Verse* (Films; JP dub)
- Strohl - Metaphor: ReFantazio (Video Game)

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 his leg 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. In gratitude for being salvaged, she makes a declaration to Natsuki: "I want to fulfill my master's final order. Until I do, I'll be your leg!"
 
In a little town slowly being enveloped by the ocean, an unforgettable summer is about to begin for this boy and this mysterious robot girl...
 
(Source: Aniplex.EXE, edited)

Drawn by the artist of the manga adaptation, a doujin imagining Atri and Natsuki after the anime's final episode!!
 
Note: Originally released at Comiket 105.

Natsuki Ikaruga