Yuuko Kirimiya is a mysterious and unsettling character from Ito Junji: Collection, specifically appearing in the story 'Slug Girl.' She is a teenage girl who begins to experience bizarre symptoms, eventually transforming as a result of a grotesque and supernatural affliction. Yuuko's tragic fate and disturbing transformation embody the unsettling horror and psychological tension characteristic of Junji Ito's works. Her role in the series is central to her story's narrative, serving as a symbol of the unpredictable and horrifying consequences of the unknown.