Miuna makes a snow sea slug out of the saltflake snow that had fallen on the surface. Meanwhile, Hikari thinks about how his father is doing alone in the sea. In the sea, Uroko-sama had gathered everyone to tell them of the calamity that was about to come.

Hikari starts back at Hama Junior High and is in the same class as Miuna and Sayu. He fits right in instantly, making the class laugh and has his old teacher back. But Miuna and Sayu can't help but feel that the situation is weird.

Tsumugu dives into the sea after Chisaki. He starts having trouble breathing and is about to lose consciousness, but then suddenly gains Ena. Tsumugu finally catches up to Chisaki and lets her know his feelings while they're in Shioshishio. Chisaki cries and runs away.