Hresvelgr, also known as Architect Hresvelgr, is a fictional character from the anime series Frame Arms Girl. She is a Frame Arms Girl, a miniature robot with artificial intelligence designed for combat. Hresvelgr is known for her calm demeanor and analytical mind, often acting as a strategist among the Frame Arms Girls. Her design is inspired by Norse mythology, and she is equipped with advanced weaponry and flight capabilities. In the series, she plays a significant role in battles and often helps other Frame Arms Girls with her tactical expertise.