Umi Monogatari: Anata ga Ite Kureta Koto - Shinjiau Kokoro
English title: Umi Monogatari: Faithful Hearts
Japanese title: うみものがたり　～あなたがいてくれたコト～ 「信じあう心」
Alternative titles: Umimonogatari Anata ga Itekuretakoto OVA, Umi Monogatari: Anata ga Ite Kureta Koto OVA, Believing Hearts, Umi Monogatari Episode 13
Type: Special
Source: Game
Episodes: 1
Status: Finished Airing
Aired: Mar 26, 2010
Duration: 23 min
Rating: PG-13 - Teens 13 or older
Studios: Zexcs
Genres: Comedy, Fantasy, Supernatural

An extra episode of Umi Monogatari: Anata ga Itekureta Koto.

One year after the events of the main series, the girls have moved on. Kanon has decided on her future occupation and wants to go into oceanography.

Meanwhile in the sea, Marin and her group find a lost sea cow separated from its mother.

Can the girls help reunite the baby sea cow with her mother?