Ep. 15: Hikari and Chisaki finally reunite after a long separation in Shioshishio
Aired on January 16, 2014

Chisaki avoids meeting Hikari due to fear of his reaction, while Hikari recovers from hibernation and receives a flag from the fishermen association. He attempts to return to Shioshishio but is driven away by currents. Tsumugu confronts Hikari, who admits he is scared by the changes during his sleep. Later, Hikari hears a song played daily for the town's sleeping residents. Following the sound, he encounters Chisaki, and the two finally meet again after their long separation.
Episodes
- Ep. 11 · The Changing Times
- Ep. 12 · Tsumugu meets his mother while Hikari confesses to Manaka during wedding preparations.
- Ep. 13 · Manaka offers herself to save Akari during the Ofunehiki ceremony
- Ep. 14 · Five years later, a frozen sea and winter prevail as Chisaki visits Isamu and reunites with Akari and Akira.
- Ep. 15 · Hikari and Chisaki finally reunite after a long separation in Shioshishio
- Ep. 16 · Hikari rescues Miuna after she falls into water during a conflict with Sayu
- Ep. 17 · Kaname reunites with friends while Sayu overcomes rejection and the group plans a sea village return.
- Ep. 18 · Miuna Finds Manaka in the Trench as Shioshishio Collapses
- Ep. 19 · Chisaki learns a new legend while Manaka remains asleep and Hikari seeks answers.