Medicine Rules the World

The frail and sickly "intelligent brain in the military" traveled through time and became a ridiculed, as strong as a calf? In an accident, she unfortunately came into contact with the ruthless and murderous Great Demon Lord. From now on, you chase me and hide, you advance and I retreat, you scold me and I tolerate it, you beat me and I carry it, it's full of passion... When the Great Demon Lord is domesticated and becomes a great loyal dog, he will follow her to slay evil spirits, destroy monsters, help her turn over the clouds in her hands, cover up the rain in her hands, and gradually step into the position of supreme being in the world. When he was successful and famous, his subordinates asked: "My lord, why are you willing to be inferior to others?" He smiled proudly: "How can you understand the sweetness of my life?" Everyone: ... What the hell, madam! Bring back their elegant Lord!