静鳴 司希

Itsuki's older step sister, she has an intense brother complex and loves her brother too much. She is a talented woman who does everything well, but is completely unaware that she has made Itsuki gynophobic.

Translated from url=https://ja.wikipedia.org/wiki/%E3%83%92%E3%83%A1%E3%82%B4%E3%83%88%E3%83%BB%E3%83%9E%E3%82%B9%E3%82%AB%E3%83%AC%E3%82%A4%E3%83%89_%E3%80%9C%E3%81%8A%E5%AC%A2%E6%A7%98%E3%81%9F%E3%81%A1%E3%81%AE%E6%88%AF%E3%82%8C%E3%80%9C.