The owner of Minamikaze has invited the girls of Lemon to his home, once there the mood changes drastically.  How can the girls escape?  Squid Girl is suffering from amnesia and everybody is trying to convince her she is an alien, girlfriend, or sister, but what about invader?  The Invasion Club has been formed, join and watch how they systematically invade the city.
We're not the same species,
 but it was love at first sight.
Wir sind zwar unterschiedliche Arten,
 aber es war Liebe auf den ersten Blick.
No éramos de la misma especie, 
pero fue amor a primera vista.
No éramos de la misma especie, 
pero fue amor a primera vista.
Même si nous ne sommes pas
de la même espèce,
Nós não somos da mesma espécie, 
mas foi amor a primeira vista.