It's Just Not My Night: Tale of a Fallen Vampire Queen manga volume 1 features story and art by Muchimaro.

Powerful vampiress Manamir is on the verge of world conquest, but when a teleportation spell goes awry, she finds herself stranded on Earth. Not only has she been flung into a world that’s not her own, she has lost the very power that defines a vampire: the ability to drink human blood! Manamir has to make ends meet somehow, and she’s about to discover that it’s a hard world out there for a single working woman in this raunchy supernatural comedy!

It's Just Not My Night: Tale of a Fallen Vampire Queen manga volume 2 features story and art by Muchimaro.

Once, Manamir was the Queen of the Night, a legendary vampiress–but now she’s stuck on Earth, working as a convenience store clerk. She’s been doing her best to get her powers back, but despite her boundless confidence, things just never seem to go Manamir’s way. Even worse, somehow she’s wound up neck-deep in debt to the mob! When one of her loyal minions appears on Earth, is it the lucky break she’s been waiting for, or a whole new kind of otherworldly trouble?

It's Just Not My Night: Tale of a Fallen Vampire Queen manga volume 3 features story and art by Muchimaro.

FINAL VOLUME.

Manablue, once a legendary vampiress and Queen of the Night, lost pretty much all her powers and got stuck working at a convenience store on Earth. All kinds of shenanigans have gone down since then, but after regaining her powers of regeneration, Manablue finds herself with the weird problem of needing to dispose of her own dead body. Several of her own dead body, in fact. Luckily, she has her loyal minions and a long-suffering yakuza dude to help her get it done!

The cute and unnecessarily lewd adventures of one extra-unfortunate vampire reach their end in this hilarious concluding volume!