A stoic and deadly woman, she is forced to deal with the crumbling Guild, and crazy state of affairs, seeking out the cause of all this, "Hundred Eyes".

Stray Cat receives her assignments from the assassins guild from an enigmatic woman in a white dress named Sayoko Uekyo.

Through the course of film Stray Cat finds herself entangled with many characters, particularly a young girl named Sayoko who wishes to become an assassin herself.

The Teacher - A wheelchair-using, tracksuit-wearing killer who failed at assassinating a well known-target, due to Stray Cat's involvement.

As an assassin, he favors killing people by shooting them in the back of the medulla oblongata, therefore affecting the dying victim's brain nerves, causing them to be dead with the facial expression of a smile.