Kenmochi

He is the Yura Sakurazuki and Kira Sakurazuki butler and chief bodyguard. He carries out Kira and Yura's daily tests written out by their father so they are able to fit into society and live as normal high school girls.

Nozumu Futami
He at first developed a dislike for Nozumu because he thought Nozumu was trying mug Kira and Yura inside a convenience store in which Nozumu was cleared of wrongdoing. His dislike for the main character him continues over the series because of Kira and Yura's affection for Nozumu. At the end of the series, he eventually warms up to him, but he still keeps his suspicions in case Nozumu treats the Sakurazuki twins wrongly.