Kujō Kai

Kujō Kai is a minor character, the head butler of the Tenjouin house. Very loyal to Tenjōin Ryūga. His daughter, Kujō Rin is currently serving Tenjōin Saki, mostly for her security.

Etymology

 * Kujō means "nine" (九) (ku) and "article" (条) (jō).
 * Kai means "Commandments" (戒).