Prologue:

A city, smothered in fire, rages on. Standing in the middle of all the chaos, a lone figure, a girl, no older than eight. Standing all alone, with blue hair swaying in wind, she looks on with heartless blue eyes. Everyone she had known betrayed her, they left her to die, her own brother as well. This girl is known as Katsu. Walking out of the malevolent mess she has made, she is greeted by a stranger, about 13 years old. He has black shaggy hair with silver tips at the ends, anger, and. Is he actually confronting her, even though he saw her made this mess, all on her own?

A few hours ago however…

"Maybe I did a little overkill" giggled the sadistic little girl. She stared at her masterpiece, the town that use to be fresh and thriving, was now crumbled down in flames due to a little misunderstanding with villagers. Stretching upwards, she thought out loud "Might as well get going before I get caught,"

"You're a little too late for that,"

"Huh?" She turned around to see a survivor, "So one rat manages to face the cat," she mocked.

"I knew I'd find the criminal warrior here,"

"Say what now?"

*Minutes before*

As the young teen wandered about to find the target for his mission, he suddenly heard a scream. A little boy popped out of the bushes and looked up at him.

"P-please help me! Someone came into our town and they are destroying it!"

"Huh? What?"

"She came looking for somewhere to stay, but I think people started to fight and that's how this whole mess started!"

"… Stay here while I go and see"

"Okay…"

And so brings them to the current event.