spoiler
Tsumugu apologizes for catching Manaka in his net. He asks her again why she’s crying and Manaka tells him that he’s the sun, but even brighter. She tells Tsumugu what she thought of the sun when she was little.
Hikari notes how quiet his village is at night now. As he thinks of the world around him, he shows wisdom beyond his years once again. He finds Manaka and takes the opportunity to speak with her. He apologizes for blurting out that he loved her, supposedly without thinking. But he wants to say it again, “properly”, now. Hikari tells Manaka that he loves her and that she’s precious to him. Then he tells her that everyone is precious to him. These feelings of his will never change even if she can’t return them.
Manaka tears up again and Hikari wants to know what she was going to say earlier. But Manaka just smiles and says that she will tell him after the Ofunehiki. She tells him to wave the flag a lot, so that “no one will get lost” and she leaves Hikari to wonder.
The day of the Ofunehiki dawns bright and beautiful. Everything is ready. Hikari prays to his mother and Manaka tucks in her still sleeping parents. Chisaki’s parents tell her not to stay out too late, and that they will try to keep awake till she returns. They know that she’s been eating too. Chisaki meets Kaname and finds out that he had a fight with his parents. But he wants to spend as much time as he can with her, reminding her that he still loves her, and that those feelings will never change.
They walk on and meet Hikari. He’s worried about Manaka not being there yet. However, she shows up right behind the others. The kids pay their respects to Uroko, who is with Tomoru. Uroko wishes them well and Tomoru compliments his son, and gives him a message for Akari before sending everyone off. But I found it a little odd that he told Hikari not to run away, “no matter what happens”. Does he know that something is going to happen at the Ofunehiki? I hope nothing bad happens!
It was funny when Hikari’s surface friends insisted that he be dressed as “a man of the sea”. Manaka catches Miuna practicing saying “mother” which was sweet. Akari makes a beautiful bride and Itaru was funny, refusing to look at her. Miuna almost got to call her “mother”, but runs after her father instead, and leaves Akari with a promise to tell her something after the ceremony.
The people of the surface gather together for the festival as Uroko begins a ceremony of his own under the ocean. The fires are lit, Hikari waves the flag and the boats depart. The men sing as the boats move out to sea. They form a circle and the boat with Akari moves to the center. Underneath them, the Sea God’s sacred flames go out and people begin to fall asleep. However, Uroko sends a gift to Akari in the form of a brightly lit roadway. Akari’s boat follows the path lit from below.
Everyone sends their wish to the Sea God. The village under the sea begins to shake as multiple whirlpools form. The surface gets very choppy as the whirlpools appear. The Sea God has come to claim his sacrifice! Akari gets thrown into the ocean and Hikari and Manaka dive in after her. A wave overturns Tsumugu’s boat and a whirlpool pulls it down.
Manaka reaches Akari first as Hikari desperately makes his way to them. Tsumugu knows he’s drowning and is happy to catch a glimpse of the pretty village beneath the sea. Chisaki gets to him just as he closes his eyes. Tomoru wants to know what is happening, but Uroko puts him to sleep. He apologizes, saying that he’s just a scale of the Sea God. I feel badly for him. He really doesn’t have any will of his own apparently.
Chisaki valiantly fights against the whirlpool, and tries to save Tsumugu. Kaname is suddenly there to help her and they fight together to get Tsumugu to the surface. They manage to get him into a boat, but the sea is now attacking the pillars, and knocks one of them down. Kaname, trying to climb into the boat gets tossed back into the raging sea as the boat turns to avoid being hit. Chisaki screams.
Manaka is trying to pull Akari back to the surface, but it’s a losing battle against the whirlpool. Manaka begs the Sea God not to take Akari. But ritual or not, Akari did make herself the sacrifice in the first place. Did she really think it would only be for show? She knew the original story. Manaka continues making pleas to the Sea God, as she tries to hold on to Akari, and is getting nowhere.
Manaka releases her hold on Akari and begins to swim to the bottom of the whirlpool, telling the Sea God to take her instead. Hikari finally arrives to grab his sister, but sees Manaka being dragged down. He reaches for her and screams out her name. Manaka opens her eyes and smiles at him. Hikari is thrown upwards and Manaka hits the seafloor with a bang. Did she even survive a landing like that? With the sacrifice accepted, the whirlpools disappear, and the sea is calm once more. Shioshishio is covered and frozen in time.
The people of the surface are just shocked with silence as they try to understand what just happened. Someone cries out that a body is floating on the surface. It’s Akari! Itaru, Miuna, and Sayu go running as a boat retrieves her. The broken remains of the Ofunehiki float on the surface of the ocean. This entire story just got torn apart! I’m just stunned and I can’t wait to see what comes next. I have so many questions!