Long ago, humanity lived in the sea. But the humans who longed for the land left the sea behind. They cast aside the special raiment they'd been given by the sea god that let them live in the ocean. The thinking of the sea humans and the land humans became as separate as the places they lived, and as countless time passed, they forgot they were once one people. This will change as the land-dwelling human Tsumugu Kihara befriends four girls who live in a village at the bottom of the sea.

The series centers around two middle school friends, the indecisive crybaby Manaka Mukaido and Hikari Sakishima, who has looked after her since they were children. They and their friends live under the sea.

Nagi no Asu Kara (凪のあすから) is a 2013 Japanese anime television series produced by P.A. Works. The series centers around two junior-high school friends, the indecisive crybaby Manaka Mukaido and Hikari Sakishima, who has looked after her since they were children. A manga adaptation by Risō Maeda began serialization in the June 2013 issue of ASCII Media Works' Dengeki Daioh magazine.