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.
We don't know how much of 
your memory will return,
Wir wissen nicht, wie viel
 deiner Erinnerung zurückkehren wird,
No sabemos cuándo volverán tus recuerdos, 
pero hay unas cuantas cosas que sé de ti.
No sabemos cuándo volverán tus recuerdos, 
pero hay unas cuantas cosas que sé de ti.
Je ne sais pas jusqu’à quel point
il te reste des bribes de mémoire…
Não sabemos o quanto da 
sua memória vai voltar,