The least devout among the nuns of the Church of Favonius, Rosaria prefers acting in the shadows rather than participating in the activities of the Church. A sister of the church, though you wouldn't know it if it weren't for her attire. An unusual woman with sharp, piercing words and a cold manner. Her movements are unpredictable. She often leaves without notifying anyone. She acts with some kind of purpose, but others don't seem to know exactly what she stands for...