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.
[Written by MAL Rewrite]+ More
Characters & Voice Actors
Edomae, Lunar
Main
Michishio, Nagasumi
Main
Seto, Sun
Main
Ajitaro
Supporting
Burio
Supporting
Edomae
Supporting
Iinchou
Supporting
Maguro
Supporting
Maki
Supporting
Masa
SupportingRecommended for you
High School! Kimengumi (Movie)
Movie
50m
Sengoku Night Blood
TV
23m
Burn Up!
OVA
46m
Asteroid in Love Episode 6.5
Special
23m
Dino Girl Gauko
ONA
7m
Colorful
TV
6m
Cinderella Nine
TV
23m
Secret Little Akko (Movie)
Movie
25m
Kemono to Chat
OVA
28m
Nineteen 19
OVA
42m
Detective Conan vs. Wooo
ONA
7m
