The Book of Life and Death in Reincarnation

In the infinite worlds, there is a Book of Life and Death that records death missions across the Myriad Worlds. Li Ming did a favor for an old classmate he hadn’t spoken to in years, only to get tricked by that classmate into a place called the [Time and Space Travel Agency]. Every member here has to undertake death missions. After returning from his first death mission, all he wants is to find that old classmate and chop him into eight pieces.