My late-life emperor was handed over to the state by a school beauty.

Li Xinghe transmigrated to the Heavenly Profound Emperor era, defeating countless geniuses and sweeping away all heroes, ultimately proving himself as an emperor! He reigned over the world for over ten thousand years, but even heroes inevitably age, his vitality waning in his later years. Various forbidden zones of life stirred, supreme beings lurked around him, and dark turmoil was about to engulf the universe. Just then, Li Xinghe discovered a portal of light, connecting to his home planet, Blue Star. ...Blue Star, dimensional rifts appeared, monsters invaded, and the entire country fell. Li Wei, the campus belle of Kyoto University, suddenly encountered a man claiming to be a messenger of God, sent to find her according to divine decree. Even more shocking to her was that this "god" was actually her brother, who had disappeared three years prior. Just as she was beginning to doubt him, the monster invasion occurred, and she didn't hesitate to report the matter to the government. That day, multiple dimensional rifts appeared, and monsters ravaged major cities. A majestic figure suddenly appeared, his sword aura soaring to the heavens, countless sword lights sweeping across the universe. Originally, her brother was actually an invincible emperor!