John Pateman-Gee

Luke Evans has a best friend who thinks everything is a conspiracy (for once, he's not wrong) and another who refuses to accept anything without a proper investigation. He can see how much time everyone has left. Oh, and his grandfather is Death. And now souls are going missing. Including Luke's father. Luke is thrown into a hidden world of rules and very questionable cosmic management. Fixing it would be ideal.
Breaking it further is more likely.