When dusk fell over the town, a man met with little girl and she was the last vampire princess.
Shinkurou Egami leads a double life.
He leads a normal school life with other students during the day.
And when the sun sets, he heads out to the town to do his job.
His job is to hunt the vampires that have slipped in among human society.
One night, he received a request and heads to the town as usual.
Then he found one little girl surrounded by stray vampires.
After hunting vampires, Shinkurou brought fainted girl to his home and rest her in his bed.
But he finds out that she is not a human.
New hunter and vampires appeared soon and then...
The fate with many thoughts intertwined has started running.