Squid Girl

Ika musume 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. Her name, イカ娘 Ika Musume literally means "Squid Girl".

She can use her tentacles to carry many plates at once while working at the beach house. Drawing with her tentacles results in hyper-detailed masterpieces. She highly excels at physical activities such as volleyball and drumming. Despite her usual naivety, she also displays a high level of intelligence occasionally—it is revealed she is a mathematical genius, capable of working with such functions as the Fourier analysis and the Poisson summation formula. Chizuru also notes how quickly she learned how to speak Japanese and interact with humans.

In mugen her was made by drowin.