A series relating the intertwined stories about the "first loves" of several middle-schoolers and high-schoolers. Each episode tends to focus on a different character, however the developments established during previous episodes continue to play smaller roles in those following. As the series progresses, an array of unusual and unexpected love webs begin to blossom.

Bundled with the limited edition ninth manga volume.

The OVA will tell the childhood stories of the main characters, adapting from the first volume of Satoru Yamaguchi's original light novel. Bundled with the seventh limited edition volume of the manga.

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.