Due to the pollution of the oceans, Squid Girl has come from the depths to subjugate humanity. However, at the initial invasion point, she accidentally destroys the Lemon Beach House. Unable to pay for the repairs, she ends up working in Lemon in recompense. Thus Squid Girl came to live with the Aizawa family, consisting of Chizuru, Eiko and Takeru.
In addition, she meets…