Classroom of the Elite: Horikita Suzune's Chapter Zero

Takes place a year before the main events of Classroom of the Elite started in the eyes of Horikita Suzune. Having lived most of her life in solitude, she refuses to make any social interaction with the people around her if not necessary. Following the footsteps of her brother, Manabu, Suzune is determined to top her studies and enter the prestigious school of Advanced Nurturing Highschool. However, with slight alterations in her past, Suzune instead finds a new reason to do good which inevitably affects the people around her. What would her final year in middle school behold?