二荒透子

A mysterious woman who has been adopted into the Futara family. She was born Shiki Touko, the elder sister of Kyouko and Yorimichi's firstborn daughter, whom the Futara House adopted following an incident that nearly claimed her life. Disowned by the Shiki household due to her infertility and albino features, she was effectively replaced by her fertile younger sister, Kyouko, who took over as the family's childbearer.