"[about O-Ren] O-Ren Ishii was born on an American military base in Tokyo, Japan. The half-Japanese, half-Chinese American army brat made her first acquaintance with death at the age of 9. It was that age she witnessed the death of her parents at the hands of Japan's most ruthless Yakuza boss, Boss Matsumoto. She swore revenge. Luckily, for her, Boss Matsumoto was a pedophile. At 11, she got her revenge. By 20, she was one of the top female assassins in the world. At 25, she did her part in the killing of 9 innocent people, including my unborn daughter, in a small wedding chapel in El Paso, Texas. But on that day, four years ago, she made one big mistake. She should've killed 10."
January 1, 1970
https://en.wikiquote.org/wiki/Kill_Bill%3A_Volume_1