Ep. 5: Chisaki confesses feelings while Akari reconciles with Miuna after a night of comfort.
Aired on October 31, 2013

Depressed Chisaki skips school, then confesses her love for Hikari to Tsumugu, unaware Manaka overhears. Akari ends her relationship with Itaru, stating she cannot replace Miuna’s mother. After Miuna disappears, Hikari and friends locate her. Hikari invites Miuna to stay overnight, where she admits her affection for Akari but fears loss due to her mother’s death. Hikari comforts her. The next day, a worried Akari finds Hikari and Miuna sleeping together peacefully. Seeing their bond, Akari reconciles with Miuna, ending their conflict. The group supports each other through emotional turmoil, resolving misunderstandings and strengthening their connections despite previous heartbreaks and separations.
Episodes
- Ep. 1 · Sea and Land Students Clash as Manaka Faces Curse and Rescue
- Ep. 2 · Manaka seeks a curse while friends witness Akari's surface romance and face village judgment.
- Ep. 3 · Hikari learns about the village's strict marriage rules and the consequences for children born with surface partners.
- Ep. 4 · Hikari refuses to help Miuna, Manaka faces rejection, and a rescue reveals a family secret.
- Ep. 5 · Chisaki confesses feelings while Akari reconciles with Miuna after a night of comfort.
- Ep. 6 · Manaka Reconciles with Chisaki During the Tomoebi Phenomenon
- Ep. 7 · Rebuilding Ofunehiki and the Reunion of Shioshishio Feuding Parties
- Ep. 8 · Hikari and friends search for a gift for Akari while Chisaki reveals feelings.
- Ep. 9 · Uroko warns Shioshishio adults of catastrophe while Tsumugu and Chisaki seek Ena restoration at sea.