Seto No Hanayome Ova
A young boy gets saved from drowning by a mermaid but, according to mermaid law, if a human sees a mermaid’s true form, both have to be killed. The only way to save them is to get married.
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Overview
A young boy gets saved from drowning by a mermaid but, according to mermaid law, if a human sees a mermaid’s true form, both have to be killed. The only way to save them is to get married.