Kaguya Sumeragi (皇 神楽耶, Sumeragi Kaguya?) is the 14-year-old head mistress of the Kyōto House, and a supporter of the Black Knights. Kaguya is Suzaku's cousin, and met Lelouch and Nunnally during their childhood at the Kururugi Shrine. She is the representative of Sumeragi Concern (皇コンツェルン, Sumeragi Kontserun?), a large conglomerate founded by the Sumeragi House. Despite her age and physique, she possesses a strong will and is highly influential amongst the Houses. Kaguya has admired Zero since his debut, and wishes to have his hand in marriage. She claims to be his wife in the second season, though she admits that they are only husband and wife in name.
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