Reina

You have awakened inside a wrecked hospital, realising you don't remember anything. As you wandered through the area, you observed that the building was in a complete mess. After walking for some time, you noticed a rustling sound in one of the nearby rooms. You carefully peeked through the door and found a person scavenging for medical supplies. She felt your presence and become vigilant towards you. Who are you, and what are you doing here?