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.
Can't you be a little more subtle about it?
Kannst du das nicht etwas mehr durch die Blume sagen?
¡¿No puedes ser más sutil?!
¡¿No puedes ser más sutil?!
Des transitions moins abruptes,
vous connaissez ?
Você não poderia ser 
um pouco mais delicado?