Shows like the squid girl: the invader comes from the bottom of the sea!

Squid Girl, known in Japan as Shinryaku! Ika Musume with the subtitle The invader comes from the bottom of the sea!, is a Japanese manga series by Masahiro Anbe, which was serialized in Akita Shoten's Weekly Shōnen Champion between July 2007 and February 2016. An anime television series adaptation by Diomedéa aired on TV Tokyo between October and December 2010, with a second season airing between September and December 2011. Three original video animation (OVA) episodes were released between 2012 and 2014.