Jun, the grim reaper who oversees death, receives a list of names and descends to the human world once again today. School, unfamiliar scenery, and a strange self. But the task seemed simple: he just needed to find the target of the code floating above his head. However, the code written on the register hovered over two people simultaneously. One was Hyeon, with his indifferent gaze, and the other was Yun, with his playful smile. The question, "Who should die?" soon transformed into "Who should live?" and Jun, concealing his identity, began living as a student alongside the two.