Toshiro is feeling uneasy, so he doesn't complain when his lieutenant pushes him out of the barracks for a walk. While walking, he suddenly feels two spiritual pressures. One of them is a hollow. When he arrives to slay it, someone has beaten him to it. A young girl, who is NOT a soul reaper. Toshiro thinks she's mad to think she could possibly win against a hollow, until he sees what she is holding in her left hand. A zanpukuto. Who is this girl, what does she want and why is she here?