They Have All Traveled Through Time, and Are Not Allowed to Live for Themselves.

In the original world, the protagonist Tian Xin had to leave early and come back late at work. He was exhausted for his girlfriend and family. Nothing happened under the high-intensity work. Sadly, he relaxed on a rare day off and never got up after a nap. When Tian Xin woke up, he found that he had arrived in a strange world.