I Rebuild Civilization in the Four-Dimensional Time Stream

The universe is collapsing, and all civilization is about to reach its end. In an instant, everything in the world was shattered in the disaster, and all living beings were just ants in the fire, and they could only scream in despair. At this moment, a dazzling light tore the universe apart! A dazzling human being slowly emerged from the realm of time where stars were annihilated. He is the last Time Lord, Hong Yu. "I will revive from chaos and will not let civilization perish in the dust!" His voice resounds throughout the universe. —— Hong Yu went back to the past trillions of years ago. He saved the Vulcan civilization on the planet Yurivia, and also saw the huge sea frozen by ice in front of the ruined temple of the Poseidon civilization... However, he still failed. This time the universe did not die of collapse, but of heat death. —— Hong Yu once again returned to trillions of years ago. This time, he discovered a blue planet that had long been deserted, the Earth. "Perhaps human civilization is the key to solving the disaster?" Hong Yu is determined to start over. "If human civilization is not destroyed, the universe will last forever!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.