Shinkirou Kotobuki

Shinkirou was originally born from the Shiranui Household, before becoming a part of the Kotobuki family. He is a member of the Shiranui Household affiliated with the Kotobuki family, and the double of Joutou Kotobuki. Ten years later, Shinkirou works in the now public Shiranui Village. (Source: Medaka Box Wiki)