Living in a seaside village, Wakashio is secretly in love with Yakaze, a member of the forest tribe. As the youngest son of the chieftain, Wakashio is living a difficult life, and spending time with Yakaze is the only solace he can find. However, when his brother discovers their relationship, Yakaze is killed. Just when Wakashio sinks into despair, Yakaze returns in a different form. With pale skin and red eyes, he may look like a monster, but his heart remains unchanged. The two still love each other as they once did, and begin to search for a way to live together. Ghosts, xenomorphs, tentacles, switching... A tale of lovers whom death does not part that takes us from the chaotic depths of the sea where histories and cultures intertwine, to a brighter place.