My Bride Is A Mermaid is an anime television show that tells the story of a young boy named Nagasumi who is saved from drowning on his summer vacation. His rescuer turns out to be a mermaid named Sun Seto, who lives by the mermaid rules. Suns family is the head of the mermaid mafia group, and to save both of their lives, they decide that instead, the two are to be married at the age of 18, a decision that Suns father Gozaburo isnt happy about. Nagasumi suddenly finds himself part of a very strange union that he has some trouble adjusting to as a result of Gozaburos attempts to kill him and the interference of some other unsavory characters. Unlike his parents, Nagasumi do not possesses great inner strength and mental clarity, and he accepts the responsibilities that come with marrying Sun