Squid Girl (Ika Musume) is the titular protagonist of her series, Shinryaku! Ika Musume. Enraged by the humans polluting her oceans, Squid Girl rose to the shores with the intentions of taking over the land, only to be caught in a debt with the Lemon Beach House when she smashed one of the restaurant's walls with her tentacles.
Ika is a girl who comes from the sea with plans to invade humanity as punishment for the pollution done to the sea. However, after causing damage to a beach house, she is forced to work as a waitress to pay for the damages and also sleeps at the Aizawa residence.
Chapter 8: Aren't You Burnt? Edit
In this chapter, Squid Girl is introduced to the concept of tanning, and, with the example of a perfect tan being the lifeguard Goro Arashiyama in her mind, gets the image of herself getting all buff from getting a tan, and then proceeds to get herself one so she can get the "perfect form".
Shinryaku no Susume Edit
In the opening of the anime, one of the images that appear near the end of the sequence is the visual of muscular Squid Girl from the above chapter.