When Seyeon Han finds out that her boyfriend of three years has been cheating on her, she is absolutely devastated. Not wanting to stick around to deal with the heartbreak, she decides to book a flight to Rio de Janeiro and plans to forget all about her ex! During her vacation, she meets the gorgeous and alluring, Jihyuk Joo, and the two decide to have a one-night stand. Seyeon thought she would never see Jihyuk again, so imagine her surprise when she shows up to work and realizes that her one-night stand is now… her new boss.