Sun Zhen's Absence from Class Is Actually an Adventure in a Different World

Ask Sun Zhen what he smokes? He said abstract. Sun Zhen, a freshman at Yanran University, was involved in a car accident on the first day of school. Prompted by a mysterious force, he met a guy who called himself the "Soul of Yanran University" and gained the ability to look back. The reversal of Sun Zhen's life also touched the fate of others. People who should be dead are still alive, people who should be living well are... Sun Zhen wants to save everything! ! ! The way is to open the door to other worlds...