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.
You really don't remember anything?
Erinnerst du dich wirklich an nichts
¿De verdad no recuerdas nada?
¿De verdad que no recuerdas nada?
Tu es sûre
de ne te souvenir de rien ?
Você realmente não se lembra de nada?