Samuel spontaneously remembered a run that had taken him and the team to Manila, back in the days when he did shadowruns while living in Japan with Samara and Thantos. On the team was this little Japanese girl, dressed like a schoolgirl, always pretending to be sweet and innocent, but she was a pure psycho and smashed other people's skulls with a spiked metal ball on a chain. And every time she had managed to crack another skull, she stroke a “cute” pose, shouted "oooh, sumimasen!" in this typical squeaking sound and giggled. Even he had been a little afraid of this chick. Ironically, she had met her end in Manila by crushing her skull with her own weapon.
From the current chapter - Shadows Approaching
No prizes for guessing from where I got the idea of that psychotic shadowrunner girl ;)