Nagisa Furukawa is a central character in the anime series 'Clannad.' She is a kind and gentle high school student at Hikarizaka High School. Despite her frail health, she is determined and resilient, often encouraging others around her. Nagisa has a deep passion for reviving the school's drama club and dreams of performing in a play. Her relationship with Tomoya Okazaki is a core element of the series, as they support each other through personal growth and challenges, highlighting themes of family, love, and perseverance.