During his summer vacation, middle school student Nagasumi Michishio travels to the Seto Inland Sea. One day, while swimming at Mio Sun Beach, his leg suddenly cramps. No one is close enough to notice his desperate screams for help, and so he sinks into the ocean, where he is left to drown alone. Just as he loses consciousness, however, a mermaid appears and saves his life.
That night, Nagasumi is visited by his savior, a girl who introduces herself as Sun Seto—a mermaid from a yakuza family. As it turns out, under mermaid law, a mermaid whose identity is revealed to a human must be punished by execution. To avoid this harrowing outcome, the Seto family propose a solution: Nagasumi must marry Sun or die at the hands of Gouzaburou, Sun's father and boss of the Seto clan. Faced with no other option, Nagasumi takes her hand in marriage.
Now, the newlyweds face the difficult task of keeping their relationship secret. Between Gouzaburou's unending attempts on Nagasumi's life and the eccentric antics of a slew of antagonists, a genuine and innocent love blossoms between the pair as they adapt to their new life.+ More
Characters & Voice Actors
Edomae, Lunar
Main
Nogawa, Sakura
Japanese
Michishio, Nagasumi
Main
Mizushima, Takahiro
Japanese
Seto, Sun
Main
Momoi, Haruko
Japanese
Ajitaro
Main
Grelle, Josh
Japanese
Burio
Main
Imaruoka, Atsushi
Japanese
Edomae
Main
Genda, Tessyo
JapanesePromotion Videos
PV English dub version
Recommended for you
Tenjho Tenge
TV
23m
Bluer Than Indigo: Fate - Miyuki
Special
15m
Battle Programmer Shirase
TV
12m
gdgd Fairies 2
TV
15m
Eon Kid
TV
24m
Koitabi: True Tours Nanto
Special
7m
Best Student Council
TV
25m
Hyper Police
TV
24m
Actually, I am...
TV
23m
Kiss x Sis
OVA
24m
Kurozuka
TV
23m
Lupin III: Voyage to Danger
Special
90m
