M&A specialist Robin Heiden (Daniel Henney) travels to South Korea to takeover the Komatu Company of Japan. In his first day in Korea, Robin is rear-ended by another car driver by Min-Joon (Uhm Jung-Hwa). At work, employees are excited about the arrival of their new boss. Min-Joon learns that the guy she ran into with her car is her new boss. Furthermore, Min-Joon is assigned to work as Robin's assistant. Robin soon tries to teach Min-Joon lessons in love.