Quick answer — Umi Monogatari: the opening theme is "Violet" by Marble and the ending theme is "Toumei na Inori".
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… Produced by ZEXCS, this drama, fantasy, and mahou shoujo series premiered in Summer 2009. It ran for 12 episodes and is finished.
Also known as: Umimonogatari Anata ga Itekuretakoto · Sea Story
Umi Monogatari has 12 episodes and is finished.
Umi Monogatari was produced by ZEXCS and released in 2009.
Umi Monogatari is classified under Drama, Fantasy, Mahou Shoujo, Romance.
Umi Monogatari premiered in Summer 2009.
The opening theme "Violet" from Umi Monogatari is performed by Marble.
The ending theme of Umi Monogatari is "Toumei na Inori".
Umi Monogatari is based on a video game.
Umi Monogatari is listed on Crunchyroll, YouTube. Availability varies by region.
Character data from AniList.
Fans also recommend: