Kimihito's eyes are about to pop. The mothers of not one, not two, but three of the monster girls who live with him are coming for a visit. It doesn't help that this trio of mothers is every bit of sexy as their daughters - and just as dangerous to Kimihito's mental and physical well-being. Stuck in the middle between the mothers and their daughters, Kimihito learns more than he ever wanted to know about the mating habits of lamia, harpies, and centaurs, while repeatedly facing the possibility of an ecstatically painful death. Fur, feathers, and scales are about to fly, as Kimihito's hide hangs in the balance!

Get married and I kill you. This was the letter sent to Kimihito, an ordinary guy living with a houseful of extraordinary beauties, by a mysterious writer known only as "D." Now it's up to Interspecies Coordinator Smith, Kimihito, and his ever-increasing menagerie of monster girls to find out who is behind the threatening letter before it's too late. The game plan? Use Kimihito as bait by sending him on a series of dates with monster girls. Along the way, several possible suspects emerge, each of whom has a "D" connection of one kind or another. Meanwhile, Kimihito's potential brides each begin acting strangely. Are they taking the fake dates too seriously - or is something (or someone) far more sinister at work?

Monster MILFs Kimihito's eyes are about to pop. The mothers of not one, not two, but three of the monster girls who live with him are coming for a visit. It doesn't help that this trio of mothers is every bit of sexy as their daughters—and just as dangerous to Kimihito's mental and physical well-being. Stuck in the middle between the mothers and their daughters, Kimihito learns more than he ever wanted to know about the mating habits of lamia, harpies, and centaurs, while repeatedly facing the possibility of an ecstatically painful death. Fur, feathers and scales are about to fly, as Kimihito's hide hangs in the balance!

Suu's been kidnapped! Kimihito and his houseful of monster girls set out to find her, but what starts as a simple search and rescue mission turns dangerous when Suu is forced to face off against a giant slime. A plus-sized water battle ensues and Kimihito is once again caught in the middle--literally! Which slime will reign supreme?

MONSTERS BEWARE, YOU’RE IN FOR A SCARE! With polygamy now legal and three brand-new monster fiancées to boot, Dr. Glenn has never been busier as Lindworm heads into fall. Molly Vanitas dreams of tourism-boosting thrills and chills at the upcoming harvest festival—but she needs the Graveyard City’s resident vampire lord’s approval, first. Winning over an ancient, deadly immortal should be a piece of cake for Glenn, right?

In a shocking twist (okay, maybe not so shocking...), Kimihito learns that he's been playing host to a princess! Mero the mermaid is actually the daughter of the king and queen of the sea, and now her royal mother is summoning her back home. Kimihito, along with the other monster girls living in his household, go to visit the mermaid queen in the hopes of changing her mind. Along the way, they uncover a tangled scheme that involves kidnapping, royal intrigue, tragedy, and, of course, naughty tentacles. If this intrepid group can manage to stay un-molested long enough to solve the mystery, they could transform the entire mermaid kingdom! But for once, Kimihito isn't the only one risking his life in the name of interspecies relations.

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 Miia, Papi, and the rest of Kimihito's menagerie find him before he's drained completely dry...or meets a fate worse than death? This romantic harem comedy is sure to get your heart pumping!