Marin and her sister Urin live in the sea. One day they find a ring fallen into the sea. They get out of the sea and meet a girl Kanon, the owner of the ring. Kanon tells them she doesn't want the ring anymore because it was given by her boyfriend whom she just broke up with, and she throws it into the forest. Marin thinks Kanon is still in love with him and looks for the ring with her sister. But Urin accidentally breaks a seal near a shrine...
Genres: Drama, Fantasy, Mahou Shoujo, Romance, Supernatural
Watch Umi Monogatari episode 1 online — subbed and dubbed, with automatic AniList / MyAnimeList progress sync.
Kuudere · Mermaid · Magic · Female Protagonist · Primarily Female Cast · Coastal · Dissociative Identities · Animals · Henshin · Love Triangle