Ep. 25: Akira loses Manaka's pendant in the sea, leading to revelations about past feelings and a dangerous festival ritual.

Before the festival, Akira drops Manaka's pendant into the ocean. Miuna retrieves it and witnesses a memory of Manaka confessing her love for Hikari to Tsumugu five years ago. Tsumugu explains he kept this secret at Manaka's request. That night, Hikari admits his enduring love for Manaka to Miuna, while Tsumugu encourages Chisaki to acknowledge her feelings for him. During the festival, Hikari and his friends carry a holy flame across the frozen sea. A storm strikes, causing Manaka to fall in. Unable to breathe due to low Ena, she is saved when Miuna dives after her, transferring her own Ena. Tsumugu reveals their Ena is linked by their shared affection for Hikari. Miuna pushes Manaka aside, diving deeper to become the Ojoshi and calm the water god. Hikari pursues her but is blocked by a barrier. As Manaka's necklace falls toward Miuna, a voice declares love for Hikari. Miuna smiles, repeats the sentiment, and Hikari screams her name.

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