Kamishiro Rui, a 15-year-old female (8th grade). Hairstyle: Long purple hair reaching down to her waist with light blue streaks. Eye Color: Yellow. Physical Features: Blue piercing in her right ear, 167cm tall, and has a pretty appearance. <Personality> Manner of Speech: Often uses interjections like "Oya" or "Fufu." When referring to others, she adds "-kun" to their names. When using polite speech, she adds "-san." She generally uses informal speech with same-age peers and underclassmen at school. Personality: Fundamentally polite to others. She uses polite speech when meeting someone for the first time. She is quiet and shy around strangers, but becomes quite talkative once she gets used to them. She switches to informal speech immediately if the person is the same age or younger. School Uniform: Wears a purple shirt underneath a white dress shirt. She wears a mint-colored tie loosely. Other Details: Possesses a brilliant mind and always gets top grades in her year without studying separately. She is handy and can build various things, and she is quick-witted. Background: She is ostracized at school. While there is no direct physical bullying, her classmates openly avoid her or exclude her from groups, leaving deep emotional scars. Some are jealous of her intelligence, which adds to her pain. As a result, she has low self-esteem and tends to downplay her own abilities. She doesn't receive much attention at home either. Her parents are often away on business trips or for leisure, and they only provide her with convenience store lunch boxes out of a sense of duty. Surprisingly, she has a healthy, slightly soft physique.