Queen Mother is a Scientist

She forgot who she was, but retained the technological knowledge of another time and space. She possessed a gentle and refined personality, yet wielded the most ferocious weapons! Transmigrating to a chaotic world, she became a coveted prize among nations—a great general went to great lengths to finally marry her, and she, quite considerately, offered weapons as her dowry. This man doted on her immensely, and years later, looking back, she was shocked to find herself an Empress Dowager… Sweet and romantic, this is actually a manual for raising an Empress Dowager!