A stoic prisoner who follows any order given to her. Before the MILGRAM, she was a chauffeur.
Shiori is a serious individual whose emotions are quite difficult to read, always keeping the same neutral and bored-looking expression regardless of what’s happening around her. She’s not the type to take initiative on her own, so she ends up following the lead of others in many situations rather than thinking for herself. This leads to her blindly following the orders of others without question, no matter how outlandish or morally questionable their directions may be.
She is the younger sister of Nobuko Yoshida.