Rosa is a Defender operator in Arknights who hails from Ursus. She is an infected individual who has embraced her condition and uses her strength in combat. Rosa is known for her fierce and aggressive personality, driven by a desire to fight against oppression and protect those she cares about. As a guerrilla fighter, she represents the resistance against tyranny. Despite her rough exterior and hot-tempered nature, Rosa demonstrates loyalty to her comrades and a deep commitment to her cause. Her combat abilities are formidable, making her a valuable asset in battles. Rosa's character embodies themes of rebellion, freedom, and the struggle against systemic injustice in the world of Arknights.