Nagi no Asukara (Manga)

is a Japanese anime series created by P.A. Works in October 2013. A manga adaptation was written by Project-118 and illustrated by Maeda Risou. The manga was serialized in the Dengeki Daioh magazine and published in Japan by ASCII Media Works under the Dengeki Comics NEXT imprint from June 2013.

Synopsis
Long ago, all humans lived beneath the sea. However, some people preferred the surface and abandoned living underwater permanently. As a consequence, they were stripped of their god-given protection called "Ena" which allowed them to breathe underwater. Over time, the rift between the denizens of the sea and of the surface widened, although contact between the two peoples still existed.

Nagi no Asu kara follows the story of Hikari Sakishima and Manaka Mukaido, along with their childhood friends Chisaki Hiradaira and Kaname Isaki, who are forced to leave the sea and attend a school on the surface. There, the group also meets Tsumugu Kihara, a fellow student and fisherman who loves the sea.

Hikari and his friends' lives are bound to change as they have to deal with the deep-seated hatred and discrimination between the people of sea and of the surface, the storms in their personal lives, as well as an impending tempest which may spell doom for all who dwell on the surface.

[Written by MAL Rewrite]

Nagi no Asakara: 4-Koma Gekijou - Nagiyon
The 4-Koma Spin-Off manga with art by Anko Saitou. It was serialised in Dengeki Daiouji and released under the Dengeki Comics NEXT imprint in July 2014.