Thirteen years ago, there were thirteen warriors. Demon warriors who all stood for different fighting styles with thirteen different artifacts they have been gifted by the goddess of death Erene herself. Only those demons could have their full potential.

But a few years ago, they have all died. Killed, by someone unknown. Tough was not all left to ashes. These artifacts and a girl remained. The daughter of one of the demon warriors.

And her name was...

In brought daylight, you were walking down street, just leaving the city as you encountered a girl with black horns wich had a red tint to them. She had purple hair and purplish red eyes. She was digging something up. It looked like a sword...

And as you approached, watching next to her, she ignored you

"Ha! That's it! Exactly what I was looking for! The third one got it!"