Yowane Haku

Haku Yowane (弱音ハク Yowane Haku) is an officially recognized derivative. Her name is taken from Yowane, meaning negative sayings/thoughts and Haku, roughly translated as utter. Her first name and last name make a play on words "yowane-(wo)-haku" (弱音(を)吐く), meaning to say negative thoughts or to show white feather. Her white hair is from ハク, which has the same pronunciation with 白 (white).