Sango Himeyuri is a fictional character from the visual novel and anime series ToHeart2. She is one of the main heroines and is known for her intelligence and technological prowess. Sango is a third-year student at the high school where the story takes place. She is characterized by her calm demeanor and her close relationship with her younger twin sister, Ruri. Sango often exhibits a mature and composed personality, which contrasts with her sister's more energetic nature. Throughout the series, she plays a crucial role in various storylines, often involving advanced technology and scientific themes.