Bear Ung and Raccoon Young are colleagues who joined the company at the same time. Every year, all employees go on hibernation leave during the winter. However, at some point, Raccoon Young stops taking hibernation leave and becomes entirely focused on work. Bear Ung doesn't understand Young's behavior, but starts to feel conflicted as he sees Young rapidly climbing the corporate ladder. Gradually, the workplace atmosphere shifts towards not taking hibernation leave. Eventually, Ung decides to give up his hibernation leave and continues working, only to find himself becoming increasingly exhausted and worn out.