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.
Stop rewriting her memories!
Erzählt ihr keinen Bockmist!
¡Dejen de reescribir sus recuerdos!
¡Dejad de reescribir sus recuerdos!
Ne falsifiez pas
ses souvenirs !
Pare de reescrever as memórias dela!