Between Sea and Land
E1–6 · 7.9Four sea village students transfer ashore, where old customs strain new friendships.
Saltflake Snow
E7–13 · 8.0A revived sea festival becomes their best hope against a spreading winter.
Promised Day
E14–20 · 7.7Five years later, Chisaki waits in a world that moved on without her friends.
Heart Beneath the Sea
E21–26 · 7.5Manaka wakes smiling, but the frozen sea still guards unfinished promises.
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