Seto no Hanayome

Synopsis

A middle schooler's summer vacation takes an unexpected turn when he's saved from drowning by a mermaid. This rescue, however, comes with a dangerous condition: mermaid law dictates that anyone who sees a mermaid must be killed. To protect his life, the boy agrees to marry the mermaid, whose father is the fearsome head of a yakuza family. The newlyweds must navigate a perilous new life, evading the father's murderous intentions and other eccentric threats, while a surprising romance begins to blossom between them.

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