Hapless Kimihito finds himself sucked into a government exchange program that forces him to become caretaker to Miia, an overly-affectionate monster girl who is part snake.

Just when Kimihito thinks he’s settled in with Miia, two new monster girls arrive on the scene to wreak havoc: Papi, the harpy, and Centorea, the centaur!

The three monster girls are now living under Kimihito’s roof, and just when it seems like tensions can’t get any higher Smith makes a surprising announcement.

Something strange appears in the Kimihito household and makes Miia its first victim.

Agents from the Interspecies Exchange Agency arrive at the Kimihito household. The girls flee with Suu, but the Agency is there for an entirely different reason.

Kimihito finds himself in one uncomfortable position after another when Miia begins shedding and Papi prepares to lay an egg. A shady director appears to film the ordeal.