This is the new grim reaper, Seung-Kwan Boo!

The heroine reunites with her friends after a long time. On the way home after a fun night out with them, she gets into a car accident? She meets a rookie grim reaper, Boo Seung-kwan, in the car accident. Why... is he so clumsy? He's not a grim reaper, but he knows even less than I do. I... can reincarnate, right? A small love story blooming in the afterlife, this is the rookie grim reaper, Boo Seung-kwan!