My Bride is a Mermaid

Nagasumi's in hot water after a beautiful, young mermaid named Sun saves him from drowning. The deep-sea sweetheart's dad is a merman yakuza prone to executing anyone who learns his family's scaly secret! Luckily, there's a catch - if Nagasumi agrees to marry Sun, he just might avoid sleeping with the fishes!
First Air Date: 2007-04-01
Production Companies: GONZO, Anime International Company, Square Enix, Sotsu, Avex Entertainment, GDH, AT-X, TV Tokyo Medianet
Seasons: 2