Umi Monogatari (2009): cast, story & where to watch

2009 · Series · ★ 4.6

Umi Monogatari poster

Released in 2009, Umi Monogatari is an animation and drama series.

What it’s about. Marin and Urin are sea folk, people who live in a peaceful underwater world surrounded by bright fish and colorful coral. But one day, a beautiful ring falls from the "sky" - that dangerous place above the water - and the two girls decide to return the lovely trinket to its owner. While the surface world holds amazing wonders for the pair, it also hides a great darkness... a darkness that Urin accidentally unleashes when she opens a stone box at a local shrine. Now it's up to Marin, Urin, and their new friend Kanon to set things right again before that darkness swallows the entire world!

Who’s in it. Umi Monogatari stars Kana Asumi as Marin (voice), Yui Horie as Urin (voice), Minako Kotobuki as Kanon Miyamori (voice) and Rokuro Naya as Matsumoto (voice), among others.

How it landed. With an audience score of 4.6/10, Umi Monogatari has proved divisive with audiences.

Where to watch. Streaming options change often. See the full, country-by-country breakdown on our where to watch Umi Monogatari page.

If you liked it. Fans of Umi Monogatari tend to enjoy Rick and Morty, Demon Slayer: Kimetsu no Yaiba, Attack on Titan and Attack on Titan: No Regrets.

Frequently asked

Where can I watch Umi Monogatari (2009)?
Streaming, rental and purchase options for Umi Monogatari change frequently. Check our where-to-watch page for the latest availability in your country.
Is Umi Monogatari worth watching?
Umi Monogatari holds an audience score of 4.6 out of 10, and is a strong pick if you enjoy animation and drama. Reactions are mixed, so it may depend on taste.
Who stars in Umi Monogatari?
Umi Monogatari stars Kana Asumi, Yui Horie, Minako Kotobuki, Rokuro Naya and Sachiko Nagai.
When was Umi Monogatari released?
Umi Monogatari was released in 2009.