Chie is a human photographer and information broker. She is a long-time friend of Shuu Tsukiyama, aware of his secret but uninterested in exposing him as a Ghoul. At his request, she serves as an informant to Kaneki's group. (Source: MAL)
She seeks out the members of the Quinx Squad, and offers to sell them information pertaining to Torso. This is because she has an unusual interest in their leader, Sasaki.