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.
Don't be surprised if they 
all get sick of it soon.
Wunder dich nicht, wenn sie bald die Lust verlieren.
No me sorprendería que se cansaran pronto.
No me sorprendería que se cansaran pronto.
Elles vont bientôt trouver des excuses
pour ne pas venir…
Não fique surpresa se todas 
elas enjoarem logo disso.