Chain of Time and Space

By chance, he was kicked by a time observer and returned to 2003 by mistake. A time when all regrets can still be undone. Help Xuanjian retrieve the fragments scattered in time and space. Li Haoyu thought he was just making up for his regrets. As the fragments were put together one by one, the shadow of history emerged, and he discovered that Xuanjian was ambushed and the host was killed, all related to the deep space invasion thousands of years ago. The annihilated alien civilization is still watching, and his rebirth is no accident. Struggle, pursuit, betrayal. When the shadow of alien civilization quietly approaches, when the branches of the future observed by Xuanjian point to destruction, and when the undercurrent of the river of time surges, can he still stick to his heart? From now to the universe, there are some roads that once you step on, you can't look back.