Kio houses a cat-eared alien named eris who's on a mission to establish friendly ties with the earthlings. However, he was whirled into a series of trouble when eris was ambushed by "the underside of kitten paw." A secret cult group led by the mysterious heiress, Antonia. As part of the protection squad, Manami and Aoi must embark on an operation to save their friend— which means fighting against Antonia's strong army of maids?! Here is the long-awaited third volume of the first-contact love comedy!