Seto no Hanayome - 01 raw
While visiting his hometown, junior high school student Michishio Nagasumi almost drowns but Seto San, a mermaid, saves his life. However, her family is part of a merfolk mafia, and they abide by a strict rule: if a mermaid is discovered by a man, either he dies, or the mermaid dies. The only exception is if the man becomes a member of the family.
Gag anime.
I liked the manga (well, at the beginning; after a while it petered out) but I couldn't stand this first episode, too manic for one thing. Scenes get dimmed somewhat randomly, not sure why but it's annoying. And the characters don't come off as very sympathetic, except maybe for the mom: it was funny how she fell for the cool yakuza at first sight. Dad must be really useless. They have only one child?