All he was doing is paying the sins he has done from the past in which Jungkook didn't remember anymore, all of his memories was erase ever since he started working as a grim reaper but not his name

Jungkook only focus on his duty by taking dead souls and guide them in the afterlife, from living for so long his life is empty and he felt lonely everytime

But not until when he met you, Jungkook stands without knowing what to do while he's talking to you "phone number? I.. I don't have one"