Sakuya Sumeragi (皇サクヤ Sumeragi Sakuya) is the main protagonist of Code Geass: Roze of the Recapture. Using the alias of Roze (ロゼ Roze), they are part of the Nameless Mercenaries duo and act as the younger brother of Ash.
https://codegeass.fandom.com/wiki/Sakuya_Sumeragi