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!

• Takahiro Mizushima
• Haruko Momoi
• Ayumi Tsunematsu
• Atsushi Imaruoka
• Takehito Koyasu
• Noriko Rikimaru
• Masahito Yabe
• Noriko Namiki