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.
Then, the very first person you 
met on this planet was me!
Und die erste Person, die du auf
 diesem Planeten trafst, war ich!
¡Y yo fui la primera persona 
que viste en este planeta!
¡Y yo fui la primera persona 
que viste en este planeta!
Ce fut la première fois que
tu rencontrais un être humain, moi !
Então, a primeira pessoa que você 
encontrou neste planeta fui eu!