Cinque Testarossa is a fictional character from Mahou Shoujo Lyrical Nanoha, appearing as one of the Numbers in the StrikerS side of the franchise. She is a calm, capable combat cyborg created by the Wolkenritter's former enemies, and serves under the leadership of her sisters within the Numbers unit. Cinque often acts as a support-oriented operative, helping coordinate missions and providing tactical assistance. Her role in the series is as part of the antagonistic force that later gains more nuanced characterization, showing loyalty, discipline, and a strong sense of duty.