In a huge institution, workers toil day and night without folding their wings—for the sake of people. Aurelius, the Angel of Death, goes against the system in the most conservative department of Heaven’s Office. Tin, the Creator, in a chain of rebirths changes the world for the better. When they receive an assignment to find a dead Dream, it becomes a real test of professionalism. To carry out the requests of the dead and ghosts, to go back in time, to challenge Death, and to find the answer to the question: what kind of desire is able to change the entire world? Take a queue ticket from the angel-secretary—and welcome to Heaven’s Office!