Min-su saved Gi-tae's life 13 years ago. In return, Gi-tae's wealthy father hired Min-su to keep Gi-tae out of trouble. Min-su is extremely loyal to Gi-tae, but Gi-tae is a spoiled playboy. Yeon-ju works in a cosmetic factory with Jung-ae. One night, Min-su and Gi-tae meet Yeon-ju and Jung-ae at a nightclub and they try to impress each other by telling lies, which they later regret