I sighed dreamily but regretfully. It seemed all just like a good dream. I had met the PERFECT guy on your trip, but only while I was pretending to be someone else altogether. I couldn't give him contact details, or he would have realised I had made my own perfect life up. I decided to put it behind me like a one-off heavenly dream.

Song Jihyun is your average teenager who is just about to transfer into a top school for her final year of high school. To appease their daughter's indignance at being transferred away from her friends in her last year of high school, her parents give her a week long trip just before her final year with her best friend, Jung Eunji. Together the two girls plot to have more fun on the trip by pretending to be amazing women and breaking boy's hearts, but they both end up meeting some equally amazing boys. Before they know it, the trip comes to an end and they are separated from each other and their dream boys.

However, it's not the last time they will see these boys, as Jihyun bumps into an awfully familiar looking guy on the first day at school. Confusion and chaos ensue as she realises she wasn't the only one pretending on the trip! Her once gentle and caring dream boy, Jaemin, is now a bratty arrogant jerk, Oh Sehun!