"Sea Story: That You Were There For Me") is a Japanese anime series, directed by Yuu Kou and Junichi Sato and produced by Zexcs.

[3] The story centers on Marin and Urin, two “pure” mermaid sisters who live alongside the fish in the sea, but yearn to be in the world beyond the water and above ground.

After an arduous journey, they come across an isolated island where a high school girl named Kanon lives.

Kanon similarly despairs over her fear of making meaningful connections with people and driving them away, in particular her distant ex-boyfriend, Kojima.

While Kanon works to develop her powers and help Marin regain hers, the Elder Turtle is adamant that Urin is a lost cause and focuses on stopping Sedna by force, as previous priestesses had done, even if it kills her host.

After confronting her own insecurities, Kanon helps Marin come to terms with her fear, and she regains her powers.

They are determined to save Urin, but Sedna absorbs their magic and destroys the stones they use to transform.

While people of the sea are born from shells and thus lack parents or direct family, she considers Urin her sister, whom she showers with affection.

She is the owner of the ring that Marin found (it was a gift from her boyfriend), which she angrily discarded when she decided to break up.

Kanon's mother, who typically sports a carefree attitude, as well as a penchant for seeing opportunities for money-making.

She uses a special golden ring to make delicious pickles, in a recipe passed down in the family.

The first manga, illustrated by Akira Katsuragi, was serialized in Mag Garden's Monthly Comic Blade magazine.