C.C. is a mysterious and enigmatic character in the anime series Code Geass: Hangyaku no Lelouch. Known for her striking green hair and golden eyes, she plays a crucial role as the immortal witch who grants the protagonist, Lelouch Lamperouge, the power of Geass. Her true name, past, and motivations are shrouded in secrecy, adding an air of intrigue to her character. C.C. often acts as Lelouch's confidante and advisor, guiding him in his quest to overthrow the Britannian Empire, while seeking her own elusive goals.