Arisu Sakayanagi

Arisu Sakayanagi stands as the undisputed architect of Class A's dominance at the Advanced Nurturing High School. Born with a congenital heart condition that requires her to walk with a cane, she compensates with an intellect that few can rival. She views those around her as mere pieces on a grand chessboard, maneuvered at her leisure. A fateful childhood encounter with Kiyotaka Ayanokoji within the enigmatic 'White Room' facility ignited an obsession within her—to prove that innate, natural genius can surpass even the most meticulously engineered human being, whom she regards as her one and only worthy adversary.