Jiangyu is a fictional Tactical Doll (T-Doll) in the mobile game and anime adaptation Girls' Frontline. She is based on the Chinese submachine gun of the same name, which is reflected in her design and personality. As a member of the elite T-Doll squad, she assists the player with her combat skills and tactical expertise. Jiangyu is known for her calm and collected demeanor, which makes her a reliable asset in the battlefield against hostile forces in the dystopian setting of Girls' Frontline.