Kyouko Kinoshita is a minor character in Boogiepop and Others, known primarily as a classmate of Kazuko Suema at Shinyo Academy. She is a seemingly ordinary high school girl whose appearance in the anime adaptation is that of a young girl with a brown bob, wearing the standard school uniform. Her personality is defined by a blend of common, relatable traits; she is depicted as an average girl easily influenced by her peers, yet also someone capable of feeling genuine fear. This vulnerability becomes central to her role in the story, as she is one of the students who falls under the pressure of Akiko Kusatsu to take the dangerous Type-S drug, unwittingly becoming part of a scheme by the Manticore to generate a cover for a series of disappearances.

Her most notable moment in the narrative occurs when she is walking home with Kazuko. Fearing for her safety, she asks if there is another way, suggesting a growing anxiety about her situation. Her fears are realized when she is suddenly attacked by Nagi Kirima, who mistakenly believes Kyouko is the Manticore. Nagi quickly overpowers her, and during this encounter, Kyouko reveals details about her involvement with the drug. Realizing the girl is merely a victim, Nagi releases her and delivers a stern threat of physical violence if Kyouko ever takes drugs again, an experience that leaves a strong impression on the frightened student. Following this event, Kyouko takes Nagi's warning to heart and promises to never use the substance again.

While not a central figure in the larger conflict, Kyouko contributes to the story in a small but meaningful way later on. Before leaving the school, she recommends a distressed fellow student, Kotoe Kinukawa, to Kazuko Suema, believing Kazuko has the ability to help with Kotoe's problems. This action demonstrates that her difficult experience did not isolate her completely; instead, she became a link connecting someone in need to a potential source of support. Kyouko does not possess any supernatural abilities and is not a fighter. Her significance comes from her role as an ordinary person caught in extraordinary and terrifying circumstances, highlighting the collateral damage caused by the supernatural events unfolding around her.