As stated in the title.
Wei Zhen, the head disciple of the Kunlun Sect, was attacked and fell into coma during his training. When he woke up, he found that he had slept for three hundred years.
The country remains the same, things have changed and people have changed.
Intention: On the one-way road of time, in the blink of an eye, your companions have gone further than you, so far that you can no longer catch up with their pace.