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 I should keep her invasion plans
Ihre Angriffspläne sollte ich vielleicht
Quizás no debería decirle sobre su
 plan de invasión mientras no recuerde nada.
Quizás no debería contarle lo de su
 plan de invasión mientras no recuerde nada.
Avant de lui faire revenir
la mémoire,
Acho melhor guardar os 
planos de invasão dela