ORANGE: The Complete Collection 1

Novel. On the day that Naho begins 11th grade, she receives a letter from herself ten years in the future. Her future self tells Naho that a new transfer student, a boy named Kakeru, will soon join her class. The letter begs Naho to watch over him, saying that only Naho can save Kakeru from a terrible future. Who is this boy and can Naho save him? B&W.