About
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!
Cast
Takahiro Mizushima
as 満潮 永澄 / Nagasumi Michishio (voice)
Haruko Momoi
as 瀬戸 燦 / Sun Seto (voice)
Ayumi Tsunematsu
as サーたん / Saturn (voice)
Atsushi Imaruoka
as 永澄の父 / Nagasumi's father (voice)
Takehito Koyasu
as シャーク藤代 / Shark Fujishiro (voice)
Noriko Rikimaru
as 伊院千代 / Class President (voice)
Masahito Yabe
as 猿飛 秀吉 / Hideyoshi Sarutobi (voice)
Noriko Namiki
as 永澄の母 / Nagasumi's mother (voice)
Tomoko Kaneda
as 猿飛 悟 / Satori Sarutobi (voice)
Natsuko Kuwatani
as 巻 / Maki (voice)
Tessyo Genda
as ルナパパ / Lunar's Papa (voice)
Kenta Miyake
as 瀬戸 豪三郎 / Gozaburo Seto (voice)
Daisuke Ono
as 三河 海 / Kai Mikawa (voice)
Eri Kitamura
as 不知火 明乃 明星 / Akeno Shiranui (voice)
Masahito Yabe
as オクトパス中島 / Octopus Nakajima (voice)
Katsuki Murase
as 政 / Masa (voice)
Sakura Nogawa
as 江戸前 留奈 / Lunar Edomae (voice)
Makiko Nabei
as 瀬戸 蓮 / Ren Seto (voice)
Rika Morinaga
as 銭形 巡 / Mawari Zenigata (voice)
Eriko Matsushima
as 永澄の祖母 / Nagasumi's grandmother (voice)
Seasons
Episodes
Season 1
A Yakuza's Wife
Nagasumi, a teenage boy, is saved by the chivalrous mermaid Sun while drowning in the ocean off the coast of Seto Island. Mermaid society rules are strict — in order for both Nagasumi and Sun to stay alive, they have to get married. Little does Nagasumi know that Sun's mermaid clan is in fact a Yakuza organization.
Legend of the Ring
Nagasumi enjoys his first date with Sun at the Bon Festival. However, most stalls are operated by the Seto-Gumi. Later, Nagasumi soon finds out that Sun's legs revert into a tail when she is splashed with water and must protect her by drying her legs.
Island Closest to Heaven
Sun and Nagasumi get to spend a whole day alone on a deserted island. However, this is a trap meant to eliminate Nagasumi, as the group's notorious assassin and longtime friend of Sun's, the "Spiral Shell" Maki, is after his life.
Life is Tough for a Guy
As a dutiful wife, Sun follows Nagasumi back to his house in the city, where she is to live with him and his parents. However, the first day back turns out to be quite hectic and eventful.
Targeted School
Sun and Nagasumi attend their first day of school. Sun's father and the gang have all become teachers at their junior-high school, and Nagasumi's friend Sarutobi falls in love with Sun. Nagasumi must survive constant attacks from his new "teachers".
Ojou-san, Be Gentle with Me
Mawari notices Sun's fishtail and comes to the conclusion that Sun is a fish. She keeps trying to splash Sun with water in order to verify her theory, but Nagasumi protects Sun, while at the same time trying to save Mawari's life from the mermaid code of law.
Visitor
Nagasumi runs into Lunar, a popstar idol; her mermaid form is accidentally revealed to him. In turn, Lunar plans on making Nagasumi her slave forever. He finds out she is a childhood friend and rival of Sun. Lunar soon makes a plan to settle the score with Sun once and for all.
Crash
The situation at school keeps escalating, and even Maki is hurt in the process. In order to avoid total war, Nagasumi comes up with a plan to settle everything in a singing competition between Sun and Lunar, with Nagasumi himself as the collateral.
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