My name is Sonozaki Ayumi. I'm 16 years old. And I want to tell my story. The school psychologist advised me to keep a diary and write down everything that happens to me. I've been running it since I was eight. I'll tell you about myself first. You already know my name and age, and the rest will be in the course of the play. I never saw my father and lived with my mother, twin brother, and younger sister. First in the city, and then in the country. First my mother died, and then we did. This is how the story begins.