UMP45 is a Tactical Doll and one of the main characters in the mobile game and anime series Dolls' Frontline. She is characterized by her strategic acumen and leadership skills, often serving as the leader of her squad. Known for her cool demeanor and tactical expertise, UMP45 plays a crucial role in combat operations, leading her team through complex missions. Her background is somewhat mysterious, adding an intriguing layer to her personality. UMP45's interactions with other characters reveal her as both a reliable leader and a complex individual with hidden depths.