Biography
Seto no Hannayome is a japanese anime released within Japan in 2007.
It was a 26 episode series with an OAV in production.
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It tells the tale of Nagasumi, a young teenager on holiday with his parents, who gets pulled under water by a current and begins to drown.
He is rescued by San, a mermaid.
Because Nagasumi saw San's true form, they must either marry or both be killed in accordance with Mermaid Law.
Whilst the 2 are happy to oblige to the marriage, San's father deeply objects.
As the head of the mermaid Yakuza, he has many assassins at his disposal including Maki, a 6 inch assassin and Fujishiro, a man who can take on the form of a great white shark.
San and Nagasumi must learn to live normally within high school as well as overcome the many random and funny trials posed by San's secret life as a mermaid.
Biography text from Last.fm, available under CC BY-SA.