Kousaburou Shirakawa

Kousaburou Shirakawa (白川 煌三郎, Shirakawa Kōsaburō), aka Masakazu Shimizu (清水 正和, Shimizu Masakazu), is the father of Sarasa Watanabe, but he is married to the daughter of Suou Shirakawa, making Sarasa his illegitimate daughter.

Etymology

 * The name Kousaburou means "glitter, gleam, twinkle" (煌) (kou), "three" (三) (sabu/zabu) and "son" (郎) (rou).
 * Kousaburou's surname Shirakawa means "white" (白) (shira) and "river, stream" (川) (kawa).