A swordsman who fights with a secretly passed down fast sword techniques for vengeance.

The top-secret experiments carried out in the De Los Empire birthed much sacrifice.
Even so, some survived.
The energy from the experience gave them superhuman strength.
These children spread out into Arad to start their own lives or while vowing revenge upon the Empire.
Among these children was a girl.
The girl watched till the very last child left.
Then, clasping the broken sword that was the last gift of the benefactor who’d fallen before her very eyes, she vanished silently.

To find her own path.
To find her own revenge.