UKM-2000 is a fictional character from the anime series Doll's Frontline, which is based on a popular mobile game. In the series, UKM-2000 is portrayed as a Tactical Doll, an android designed to fight and protect humanity in a dystopian future where the world is plagued by rogue AI and endless warfare. UKM-2000 is known for her reliability and efficiency in combat, wielding her signature weapon, a light machine gun. Her role in the series is to support her team in various operations, showcasing both her strategic mind and her dedication to her comrades.