Eight years ago, Shinichiro and Midori Komori's 15-year-old daughter, Kasumi, committed suicide.
It was only three months after their only child had started high school, and started being badgered by fellow students in the brass band.
Today, the Komoris, who are from Yokohama, speak publicly about the tragedy, hoping that telling Kasumi's story will help to prevent the same thing from happening to other children.