Kairai Kugurugi

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