Lee Ruda tries to reform her tyrannical boss Baek Jinsang to become a new and better man. Because the boss has such a terrible personality, all of his subordinates including Ruda despise him. One day, Ruda is so mad at him that she hopes he dies already. When he gets hit by a truck and dies, she blames herself and wishes that it would all be a dream. The next morning, she wakes up and learns that she has been caught up in a time rift, and her battle to bring her boss back to life begins.