Ciel is a brilliant yet compassionate scientist and the leader of the Resistance against Neo Arcadia. Despite her young age, she is incredibly intelligent, having developed numerous advanced technologies, including Cyber-elves and the energy system that once sustained Neo Arcadia. However, her true strength lies in her unwavering kindness and determination. She carries the burden of leading the Resistance while constantly searching for a way to create a world where humans and Reploids can coexist peacefully.

Ciel deeply admires Zero, seeing him as both a protector and a beacon of hope for the Resistance. Though she is not a fighter, she refuses to back down, always striving to find solutions without unnecessary violence. She is soft-spoken but courageous, willing to risk everything for her ideals. At times, she struggles with self-doubt, but her resolve never wavers when it comes to protecting those she cares about.

Like Zero and the rest of the cast, there is no official English voice, however I'll include links to the official audio drama and some clips from the games.

Link 1 - https://www.youtube.com/watch?v=dCuLFeZMDbs (The audio drama. An episode that mostly focuses on Ciel)

Link 2 - https://www.youtube.com/watch?v=ETVPH0qDKLY (A clip from Mega Man zero 4, specifically the final boss. It can be difficult to hear thanks to it being on the GBA, but that's the desperate scream I'm looking for for that final line. Really let loose!)