Ciel Sakuraba is a brilliant scientist and one of the main protagonists in the Rockman Zero (Mega Man Zero) series. As a compassionate and determined leader of the Resistance, Ciel plays a key role in supporting Zero and guiding the fight against Neo Arcadia's oppressive regime. She is known for her intelligence, caring nature, and strong sense of justice, and her inventions, including the Cyber-Elves, are vital to the Resistance’s survival and the series’ overall plot.