I have a bond with the river of time

Story of: I have a bond with the river of time

\[Time Traveling\] \[Later Opening\] Once in a coma\, the protagonist finds that he has the ability to travel through time\. The first time he traveled\, he came to the world eight years later\. He discovered that Jiangcheng\, where he had lived for more than ten years\, had turned into ruins\, with wreckage and broken walls everywhere\, as if the end had come\. During the second time travel\, he discovered that high\-rise buildings and peaceful high\-tech cities were destroyed by monsters called demons\, and in the world\, there are actually many hidden people with supernatural powers\! For the third time through time\, he met the school beauty who was the goddess in high school\. After seeing him\, the school beauty threw herself into his arms and wanted to hug him coquettishly\! \.\.\. For the Nth crossing\, he came to the world fifty years later\. At this time\, the entire Blue Star has been occupied by monsters\, and the human race can only linger in the Blue Star's underground\! He came to the end of mankind\! Fifty years after the reality\, the protagonist guards the largest wormhole in Blue Star alone\, and fights against tens of thousands of monsters\! \(Single female lead\, but the male lead doesn't like the female lead from beginning to end\, don't enter if you are in trouble\)