A Lull in the Sea Episode Ratings Heatmap
| Avg | E1 | E2 | E3 | E4 | E5 | E6 | E7 | E8 | E9 | E10 | E11 | E12 | E13 | E14 | E15 | E16 | E17 | E18 | E19 | E20 | E21 | E22 | E23 | E24 | E25 | E26 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1 | 7.7 | 7.7 | 7.8 | 7.9 | 7.7 | 7.8 | 7.4 | 7.8 | 7.7 | 7.7 | 7.5 | 7.5 | 7.8 | 8.9 | 7.8 | 7.6 | 7.5 | 7.2 | 7.9 | 7.6 | 7.3 | 7.1 | 7.4 | 7.3 | 7.3 | 7.5 | 7.5 |
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About
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. This show 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.
All Seasons

| Ep | Title | Rating | Votes | Runtime | |
|---|---|---|---|---|---|
| ▶ | 1 | In Between the Sea and the Land | 7.7 | 59 | 23 min |
| ▶ | 2 | The Chilly Desert | 7.8 | 53 | 23 min |
| ▶ | 3 | The Legend of the Sea | 7.9 | 49 | 23 min |
| ▶ | 4 | Because We're Friends | 7.7 | 49 | 23 min |
| ▶ | 5 | Hey, Sea Slug | 7.8 | 50 | 23 min |
| ▶ | 6 | Beyond Tomoebi | 7.4 | 44 | 23 min |
| ▶ | 7 | The Ofuniki Shakes | 7.8 | 45 | 23 min |
| ▶ | 8 | Beyond the Wavering Feelings | 7.7 | 43 | 23 min |
| ▶ | 9 | Unknown Warmth | 7.7 | 43 | 23 min |
| ▶ | 10 | The Saltflake Snow Falls and Falls | 7.5 | 43 | 23 min |
| ▶ | 11 | The Changing Times | 7.5 | 42 | 23 min |
| ▶ | 12 | Wanting to Be Gentle | 7.8 | 43 | 23 min |
| ▶ | 13 | The Fingertips That Can't Reach | 8.9 | 63 | 24 min |
| ▶ | 14 | The Promised Day | 7.8 | 44 | 23 min |
| ▶ | 15 | Protector of the Smile | 7.6 | 42 | 23 min |
| ▶ | 16 | Whisper of the Distant Wave | 7.5 | 42 | 23 min |
| ▶ | 17 | The Sick Two | 7.2 | 40 | 23 min |
| ▶ | 18 | Shioshishio | 7.9 | 42 | 23 min |
| ▶ | 19 | The Lost, Lost Little... | 7.6 | 39 | 23 min |
| ▶ | 20 | Sleeping Beauty | 7.3 | 40 | 23 min |
| ▶ | 21 | The Messenger from the Bottom of the Sea | 7.1 | 37 | 23 min |
| ▶ | 22 | Thing That Was Lost | 7.4 | 40 | 23 min |
| ▶ | 23 | To Whom Do These Feelings Belong | 7.3 | 39 | 23 min |
| ▶ | 24 | Detritus | 7.3 | 37 | 23 min |
| ▶ | 25 | Love, Is Just Like the Sea. | 7.5 | 40 | 23 min |
| ▶ | 26 | The Color of the Sea. The Color of the Land. The Color of the Wind. The Color of the Heart. The Color of You. ~Earth Color of a Calm~ | 7.5 | 46 | 24 min |