A Lull in the Sea

凪のあすから (Nagi no Asu kara)

9.0(1)

OtakuDen

7.9(269,935)

MAL Score

Ranked #869

Popularity #393

Drama
Fantasy
Romance
Love Polygon
Urban Fantasy

Episodes: 26
Duration: 23 min per ep
Aired: Oct 3, 2013 to Apr 3, 2014
Status: Finished Airing

Synopsis

Long ago, humanity lived beneath the ocean, protected by a divine blessing known as Ena that allowed them to breathe underwater. When some chose to leave for life on the surface, they forfeited that protection, and the divide between sea-dwellers and surface residents gradually hardened—despite the two worlds never fully losing contact.

Hikari Sakishima and Manaka Mukaido, along with childhood friends Chisaki Hiradaira and Kaname Isaki, are pushed into that tension firsthand when they must leave their undersea home to attend school on land. There they meet Tsumugu Kihara, a fisherman’s son and classmate with a deep affection for the sea. As old prejudices and everyday misunderstandings collide with shifting relationships, their lives are tested by discrimination, emotional upheaval, and signs of an approaching storm that could threaten those living on the surface.

Otaku Consensus

A Lull in the Sea earns its strong fan reputation, reflected in a 7.93 MAL score and 77/100 AniList score, by pairing P.A. Works’ coastal visual craft with Toshiya Shinohara’s patient direction and Mari Okada’s emotionally exacting ensemble writing. Its second-cour structural turn is the series’ defining strength, giving the romance web and environmental mythos real consequence rather than treating them as school-drama decoration. The recurring criticism is that the early episodes can feel over-saturated with jealousy and adolescent friction before the long-form payoff arrives.

Why You Should Watch

Watch A Lull in the Sea if you want a romance drama where the “love polygon” is not a gimmick but the engine of character growth, social tension, and regret. It scratches a similar emotional itch to Anohana in its Mari Okada-style fixation on feelings left unsaid, but it trades ghost-story catharsis for a full 26-episode fantasy ecosystem shaped by ritual, weather, class prejudice, and community memory. Viewers who like P.A. Works’ polished everyday settings will find one of the studio’s most distinctive visual identities here: glowing underwater streets, salt-worn surface towns, and color work designed around blue, coral, and winter light. The best fit is someone who wants slow-burn romantic pain without a harem reset button.

Key Characters

H
Hikari Sakishima
Hikari is compelling because his immaturity is not softened for likability; the series makes his pride, protectiveness, and capacity for change part of the same emotional problem.
M
Manaka Mukaido
Manaka is often discussed as the emotional center of the cast, a character whose gentleness becomes dramatically important because others project so much longing and anxiety onto her.
C
Chisaki Hiradaira
Chisaki stands out for how the show treats insecurity as a long-term character wound rather than a single confession-scene obstacle.
T
Tsumugu Kihara
Tsumugu’s quiet fascination with the sea gives the ensemble a rare outsider perspective, making him less a rival archetype than a calm pressure point in the group dynamic.

What Makes It Stand Out

1
The series is an original TV anime rather than a manga or light-novel adaptation, allowing Mari Okada’s series composition to build its romantic and mythic payoffs around the 26-episode broadcast structure.
2
P.A. Works gives the setting a production identity built around contrast: luminous undersea spaces versus grounded fishing-town textures, with Kazuki Higashiji credited as art director and Mika Sugawara as color designer.
3
The second cour is widely treated as the show’s signature stretch because it reframes earlier relationship dynamics instead of simply escalating the initial school-drama conflicts.
4
Yoshiaki Dewa’s music supports the series’ emotional pacing with a score that leans into atmosphere and melancholy rather than constant romantic melodrama.
5
AniList’s highest-weighted tags, including Coastal, Love Triangle, Coming of Age, Environmental, Gods, Fishing, and Lost Civilization, capture how unusually intertwined the romance, folklore, and ecology are for a school-age ensemble drama.

Fun Facts & Trivia

Fun fact 1: Buriki, known for delicate, soft-featured character illustration, provided the original character designs, while Yuriko Ishii handled both character design and chief animation director duties for the anime.
Fun fact 2: The series aired for two continuous cours from October 3, 2013 to April 3, 2014, giving it room for a mid-series transformation that a 12-episode version would not have supported.
Fun fact 3: Toshiya Shinohara directed the series, with Mari Okada on series composition, a pairing that helped define the show’s blend of fantasy-world rules and emotionally volatile ensemble drama.
Fun fact 4: The show’s popularity metrics remain unusually strong for an anime-original romance fantasy: MAL lists it around popularity rank #390 with more than 269,000 user votes, while AniList records over 3,500 favourites.
Fun fact 5: Reika Kisumi is credited with theme song performance, and Jin Aketagawa served as sound director, placing notable emphasis on the series’ soundscape alongside its highly discussed visual design.