Ep. 19: Chisaki learns a new legend while Manaka remains asleep and Hikari seeks answers.
Aired on February 13, 2014

Manaka remains asleep but healthy, prompting Chisaki to realize Miuna’s affection for him. Chisaki then hears a new part of the Ofunehiki legend from Isamu while tending to him. At Tsumugu's house, Kaname questions Tsumugu about research funding for Shioshishio, leading to a night where both men confess their feelings for Chisaki. The next day, Chisaki struggles against currents until Hikari rescues her. She shares the legend with him, suggesting Manaka’s coma relates to a lost Ena. Hikari plans to confront Uroko and returns to the surface with Chisaki, who admits her lingering love for him. Despite these developments, one week passes without Manaka waking up.
Episodes
- 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.
- Ep. 20 · Hikari searches for Uroko while Miuna questions her feelings and Manaka wakes up
- Ep. 21 · Manaka wakes without Ena while Miuna struggles with breathing issues and Tsumugu reveals a fishhead curse.
- Ep. 22 · Hikari searches for Uroko while temperatures drop and Manaka's lost memories complicate his feelings.
- Ep. 23 · Hikari confronts Tsumugu while Miuna and Sayu navigate their own romantic confessions.