A Lull in the Sea Set 1 contains episodes 1-13 of the anime directed by Toshiya Shinohara and an episode guide leaflet.

Due to the closure of their middle school, four students from the sea, Manaka Mukaido, Hikari Sakishima, Chisaki Hiradaira, and Kaname Isaki must attend middle school on the land, despite the growing tension between the land and sea people. While getting used to their new lives, these four and their new friend from the land, Tsumugu Kihara, plan to put on an Ofunehiki, a festival traditionally organized by the land and the sea people, in an attempt to create peace between the two villages.

Special Features: Episode 14: The Promised Day, Clean Opening 1 and Ending 1, Original Japanese Trailers.

Spoken Languages: English, Japanese, English subtitles.