When people die, they go to the afterlife and get assigned jobs. Same goes for Jisung - the cocky bastard- and Taeil - the ultimate sweetheart. When Jisung and Taeil died, they forgot all affairs of their life with each other and somehow manage to get on each other's bad sides. When they get assigned their jobs, they become even grumpier, but have to learn how to deal with each other. How are they suppose to work together if they can't even tolerate each other's presence?