Squid Girl

Squid Girl, known in Japan as Shinryaku! Ika Musume (侵略!イカ娘, lit. Invade! Squid Girl) with the subtitle The invader comes from the bottom of the sea!, is a Japanese manga series by Masahiro Anbe, which began serialization in Weekly Shōnen Champion in July 2007. An anime adaptation by Diomedéa aired on TV Tokyo between October and December 2010, and a second series titled Shinryaku!? Ika Musume aired in Japan between September and December 2011. Three original video animation (OVA) episodes were released between 2012 and 2014.

Plot

Squid Girl is a girl from the ocean who possesses blue squid-like tentacles for hair. Vowing to invade mankind as revenge for its pollution of the ocean, she attempts to make the Lemon Beach House, owned by the Aizawa siblings and located somewhere on the Japanese coast, her base of operations. However, when she accidentally breaks a hole in their wall trying to demonstrate her power, she is forced to work as a waitress to pay off the damages. Thus, Squid Girl begins her life on the surface, learning new things and encountering many curious visitors to the beach house.