The Rebirth of the White Emperor

The Mirror of Illusion floats in the boundless void of the universe. It was born to gather the world that countless creatures in the universe yearn for. Douluo, Dou Qi, sword and magic, elves, Honkai Impact... Each has its own universe, representing nothingness and fantasy. And how does our protagonist from the universe awaken in the Mirror of Illusion, how can he retrieve the past, explore the future, and climb to a higher peak than the peak?,,,