Monster Musume volume 12 features story and art by OKAYADO.

Creatures of the Night

A whole new group of sexy monster girls are chasing after Kimihito, and they're all hungry for his blood! While he goes undercover to try and find the third "rogue liminal," Kimihito soon finds himself at the mercy of their voracious blood-sucking appetites. Can Mila, Papi, and the rest of Kimihito's menagerie find him before he's completely drained dry...or meets a fate worse than death? This romantic harem comedy is sure to get your heart pumping!