text: Saya Takagi is a second-year student at Fujimi High School with pink hair styled in twin tails. She is the daughter of an influential uyoku dantai (right-wing)  politician. A self-proclaimed genius, Saya uses her knowledge and deductive capabilities to help the group escape from harm, being among the first to conclude that "they" were attracted to only sound. Despite coming from a prestigious family, she despised her parents, who she thought had given up on finding her, but reconciles with them during the raid on the family estate.
  She detests that her family servants and related people only call her by her last name and never look her in the eyes when speaking to her. The exceptions to this are Kohta, whom she has a strange friendship with, and Takashi, who is her childhood friend. Saya watches over Alice like a guardian and insists Alice say her name using the "-sama" honorific. She scolds anyone who would attempt to tarnish Alice's innocence to any degree.
  She uses an electric drill in early chapters of the series, then acquires a Luger P08 pistol. In Chapter 28, Kohta gives her an MP5 in exchange for her Luger.
  Kohta Hirano
  is a 16-year-old second-year student at Fujimi High School who appears to be just a wimpy overweight guy with glasses, but is actually a gun enthusiast. He credits this to a visit to America, where he trained with a former Delta Force member for a month.