Kotone Sasahara is a fictional character from the anime and manga series 'Genshiken'. She is the younger sister of Kanji Sasahara, one of the main characters and the former president of the Society for the Study of Modern Visual Culture, also known as Genshiken. Kotone is portrayed as a strong-willed and somewhat mischievous character, often teasing her brother but also showing a deep care for him. She occasionally interacts with the members of Genshiken, bringing an outsider's perspective to the group of otaku. Her role adds depth to the series, exploring familial relationships and the dynamics between siblings.