My older sister, Sakura neechan, has been shining ever since we were children. She was bright, pretty, and smart, and was an idol not only to the boys in her class but to the whole school. She was also liked by the teachers, and had many female friends... she was an impeccable older sister. Even now that she's become a teacher, she's still the epitome of a beautiful and intelligent sister. However, between my sister and me, there is a secret that we can't tell anyone...