Yunseong, a new employee at JH Soft, is troubled by the president, Baek Hajin, who glares at him whenever they cross paths. "I'm just a regular employee. Why is he glaring at me? Did I do something to get on his bad side?" Thinking this, Yunseong does his best to avoid him... One day, a mysterious employee ID appears, and he learns the president's secret; he's a thousand-year-old fox (?!). And somehow, Hajin's fox-bead has entered Yunseong's body and won't come out...? Thus is the start of his utterly upended work-life. "Mr. Joo Yunseong, you have two options. First, stick with me for a while and deal with the hassle. Or second, just cut your stomach open and take it out." 'Huh?? Aren't both options too harsh for an ordinary office worker like me?!'