After the Divorce, the Grand Princess Began to Rule from Behind the Scenes

At first, they mocked her for having no children and cutting off her consort's line of succession; Later, they denounced her as talentless and incapable, unworthy of the position of Mystic Maiden; Later still, they cursed her for being ambitious and said she was a portent of a kingdom in chaos. Then she pulled out a firearm and blew the head off a rebel. Why did no one call her cold-blooded, heartless, treacherous, and vicious this time? The heroine is a native of this world, in charge of the career storyline ↑ ↓ The hero transmigrates, in charge of the romance. * When she was seventeen, he was seven. She set three difficult challenges for her suitors, And he was the first to solve them. He confidently explained his answers to her, but she dismissed it as a child showing off. When she was twenty-four, he was fourteen. She had divorced her husband, weary to the core and steeped in sorrow. He resisted his family's attempts to control him, rebelled like any teenager, and ran away from home. He invited her to travel with him, but she shook her head and said only that he hadn't grown up yet. When she was thirty-one, he was twenty-one. The emperor entrusted his young heir to her on his deathbed. In exchange for swearing never to remarry, she gained power to rival the emperor's. He, meanwhile, was merely an aloof, outspoken official in the Ministry of Works, tinkering with strange inventions that people laughed at, destined to fade into obscurity. Note: An older woman-younger man romance. Ten-year age gap. No marriage. No children. The young emperor never holds power at any point in the story and only ascends the throne near the end. The heir is a girl. Theme: Don't care about other people's opinions and gossip. Live a life that shines in your own way.