Queen Mother is a Scientist

She forgot who she was, but she remembered the knowledge of science and technology from a different time and space. Her personality is delicate and gentle, but she holds the most fierce and vicious guns and knives in her hands! Once she passes through the chaos, she becomes the beloved person of the countries. The General finally marries her into the family after a lot of hard work. She tactfully used weapons as her dowry, yet this man pampered her all the way. Looking back many years later, she suddenly realised that she already had become the Empress Dowager…