In My Later Years, I Was an Emperor and Was Handed over to the Country by My School Belle Sister.

Li Xinghe traveled through Emperor Tianxuan, defeated all the geniuses, swept through the heroes, and finally became the emperor! He has ruled the world for more than 10,000 years, but in the end he inevitably becomes a hero and his vitality and blood decline as he enters his old age. The major forbidden areas of life are about to move, the supreme beings are waiting around, and dark chaos is about to sweep across the universe and stars. At this moment, Li Xinghe discovered a light door that actually connected to his hometown Blue Star. ... On Blue Star, dimensional rifts appeared, monsters invaded, and all parts of the country fell one after another. Kyoto University belle Li Wei suddenly met a man who claimed to be the messenger of God and followed the oracle to come to her. What shocked her even more was that the "god" was actually her brother who had disappeared for three years. Just when she was doubtful, a monster invaded, and she reported the matter to the country without hesitation. That day, many dimensional rifts appeared, and monsters wreaked havoc in major cities. A majestic figure suddenly appeared, the sword energy soared into the sky, and the sword light spread across the world. It turned out that her brother was actually the invincible emperor in the world!