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.
Maybe if you eat more shrimp, 
you'll remember stuff!
Wenn du mehr Shrimps isst,
 erinnerst du dich vielleicht wieder.
¡Tal vez recuerdes algo 
si comes más camarones!
¡Tal vez recuerdes algo 
si comes más gambas!
Avec des crevettes,
elle recouvrera peut-être la mémoire !
Talvez se você comer mais camarão, 
você lembre de mais coisas!