This is Saint Aria, a big city in the human world.

The vampire girl "Venedict" came to this city after receiving a mysterious invitation (and getting thrown out by her sister)! She's joined by the fluffy werewolf Arisa, the dreamy demon Eve, and the mild-mannered Fran, and they decide to share a house!

These modern-day monster girls are on a rampage in the human world, and they'll always be close and have lots of laughs! The cutest yuri comedy visual novel in the world!

It's Kira Kira Monsters Showtime!

[From Steam]