Saria Schwarz is a key character in the mobile tower defense game 'Arknights'. As a former head of the Rhine Lab Defense Division, she is a highly skilled defender operator known for her strategic acumen and commanding presence on the battlefield. Saria is a calm and composed individual, often taking on a leadership role among the operators. Her abilities focus on healing and providing defensive support, making her an invaluable asset in combat. Throughout the storyline, Saria's complex relationships and past experiences at Rhine Lab add depth to her character and drive her motivations.