There was no evil in this world.
Still there was also a rumor about a daikan-minister capturing young girls, making them into meat slaves and selling them.
Such a major crime involving foreign countries could undermine the this country's foundation.
This time Kunoichi Kaede makes her move.
The target is an official from shogunate.
Kaede:
"I am just a shinobi, if a disposable blade is touched, it will be a single arrow that never returns to the quiver"
Thus, Kunoichi Kaede runs through the night city.
To avert the evil, scourge it's substitutes and restore the life in capital and whole country.